Fujitsu Siemens Computers Fujitsu-Siemens PC manuale d’uso

User Manual for a Fujitsu-Siemens PC Help with problems and information, frequently asked questions i[...]

Dear custom er We are pleased that you have ch osen a system from Fujitsu Siemens Computers. We are sure that you will not regret this decision. The analysis of information and feedback provid ed by our customers led us to produce this m anual and to keep it constantly updated. Our experience shows that general p ublications about PCs designed for [...]

The information in this manual is subj ect to change without prior notification. Despite every care being taken in its production, we cannot rule out the possibility that this manual may contain errors or omissions. No liabilit y whatsoever is accepted for errors or loss of data as a consequence of this. All rights reserved, including thos e for ph[...]

Contents General safety information and init ial startup 1 Safety, precautionary and co mpliance instructions ...................... 1 2 Startup .......................................................................................... 7 2.1 Connecting t he computer ........................................................ 7 2.1.1 Computer connectio[...]

2.3 The worki ng memo ry .............................................................. 4 2.4 Slots ........................................................................................ 4 2.5 The graphi cs card ................................................................... 6 i Our tips a nd hints … ........................................[...]

i Our tips a nd hints … .................................................... 23 ... on establishi ng WLANs ..................................................... 23 ... for configuring a WLAN conne ction .................................. 24 2.10 Driv es .................................................................................. 27 2.10.1 F[...]

i Our tips a nd hints … ................................................... 42 ... for using the BIOS............................................................. 42 ... accessing the BI OS .......................................................... 42 3.4 Driv ers ...................................................................................[...]

i Our tips a nd hints … .................................................... 65 ... on the SCAL EO X..... ........................................................ 65 5.3 Installing expansion m odules ................................................ 65 5.4 Installing additional hard disks a nd drives ............................ 67 6 Troubleshoot [...]

General safety information and initial startup[...]

Safety, precautionary and compliance instructions 1 1 Safety, precautionary and compliance instructions Your PC complies with the relevant safety regulations for IT equipment. Should you have any questi ons with regard to whether you can use the unit where intended pl ease contact your sale s agent or our service departm ent. • Keep this safety i[...]

Safety, precautionary and compliance instructions 2 Electromagnetic compatibility • External units, such as monitors, joystick s, etc., may only be connected to the interface ports with screened cable s to meet the harmonised standards u nder electromagnetic compatibility (EMC) legislation. • You may only operate the unit if its rated voltage m[...]

Safety, precautionary and compliance instructions 3 • The unit can be equipped with a power output whi ch may only be used to connect a monitor. • Never open the power supply unit! The components (e. g. power supply) marked with a warning (e.g. lightning) may only be opened, removed or exchanged by authori sed qualified personnel. • If the BI[...]

Safety, precautionary and compliance instructions 4 • Look after the optical drive and prevent mechanical d amage as well as premature ware of the storage media by takin g the following advice: − Only insert CDs/DVDs in the drive when required an d remove them after use. − Store the CDs/DVDs in appropriate cases. Protect them from heat and di[...]

Safety, precautionary and compliance instructions 5 Additional notes for proper operatio n • Position the unit so that there is adequate air for cooling. Never cover the ventilation slots on the unit. This could cause overheating and thus shor ten the life of your unit. • Protect your device from very high humidity, direct sunlight as well as h[...]

Safety, precautionary and compliance instructions 6 • The hard disk has already been formatted and the op erating system has been installed. It will only need to be form atted if the drive has to be reconfigured. • The "Product Recovery" CD/DVD sup plied can only be used to restore/install your operatin g sy stem if a motherboard with[...]

Startup 7 2 Startup 2.1 Connecting the computer 2.1.1 Computer connections Most of a computer's connectio ns are located at its rear. Which connections are pre sent and where they can be foun d depends on the particular computer model. The most commo nly used connections are listed in the followi ng table. Connection image Icon Colour Connecti[...]

Startup 8 Cinch socket SPDIF IN SPDIF Out Yellow Digital sound connection see also manual on the motherboard and "Tips and tricks" USB socket or USB Black white Connection for USB 2.0 devices (e.g. keyboard, IR sender/receiver module, scanner, printer) USB 2.03) or FireWire socket IEEE 1394 Black white Connection for IEE- compatible devic[...]

Startup 9 1) Caution: Under the connection, there may be a toggle switch for changing th e power supply from 230 V to 115 V. The factory se tting is 230 V . 2) With an additionally installed soundcard, t he sound function on the motherboard is not activated or "Sound onboard" is not available. 3) Important information on USB 2.0: In order[...]

Startup 10 2.2 Connection Before you switch on the computer, please connect 1. the monitor, keyboard, mouse , printer (if applicable), modem and any other peripheral units to the PC. Please refer t o the information in the chapter "Computer Co nnections", as well as the information in the "Quick Guide". 2. First connect the powe[...]

Startup 11 Note on Microsoft®Windo ws XP Home Edition and Professional Fujitsu Siemens Computers has pre -installed Microsoft®Windo ws XP in such a way that you can use the product immediately. If you want to change critical hardware comp onents, it may be necessary to reactivate the system. In this case, follow the program instructions after cha[...]

Transporting the system 12 3 Transporting the system If you are going to transport your computer over a lon g distance, for example in a vehicle, you must ensure that the data carriers ar e not at risk of being damaged by the transport. When tran sporting the computer in a vehicle, always make a complete backup of the hard disk on an external data [...]

Guarantee services 13 4 Guarantee services For our systems we generally grant guarantee claim s according to the German Civil Code as well as additi onal guarantee service s on agreement (see the correspondi ng service documentation for details). The system you have purchased has be en produced to environmentally sound standard s an d strict qualit[...]

Technical data and operating conditions A-1 Technical data and operating conditions Technical data Power drain when unit is switched off – ATX mains supply unit ≤ 5 W (0 W only possible when directly disconnected from the power supply – disconnect the power plug or switch off the unit with the on/off switch on the rear of the housing) Input v[...]

Supplement to the operating instructions A-2 Supplement to the operating instructions Guidelines and Environmental Protection An important characteristic of our produ cts, alongside quality and performance, is environme ntal friendliness. (I) Protection of resources with energy -saving functions Our units generally have energy -saving modes. (II) D[...]

Supplement to the operating instructions A-3 − Operating Instructions The documentation delivered with the unit has be en printed solely on chlorine-free paper. The documents mentione d above can be viewed at the manufacturer if required.[...]

Help with problems and information, frequently asked questions i[...]

1 1 Guidelines 1.1 EMC directives Abbreviation for " E lectro M agnetic C ompatibility". As well as the effects of electrical smog on human he alth, the effects of electronic devices and installations on other ele ctrical systems are also an important aspect of many discus sions today. It is not without good reason that the standards for [...]

2 to allow the free movement of these goods within the European internal market. The directive, the RTTE directive 1999/5 EC ( R adio equipme nt and T elecommunications T e rminal E quipment and the mutual recognition of their conformity ) has been implemented in German law by the FTEG ( F unkanlagen und T el ekommunikat ions E ndeinrichtungs G ese[...]

3 2 Hardware Hardware is a very commonly used term in computer technology. It simply refers to all the compone nts of a PC and its peripherals (e.g. printers, scanne rs etc.). i Our tips and hints … ... on saving energy • We recommend connecting the system and the peripherals to a standard switchable plug strip. Thi s makes disconnectin g the e[...]

4 the system’s control and calculati on op erations. The description of a PC system normally specifies the processor type a nd its speed. i Our tips and hints … ... on the LGA-775 processor socket A few systems are using a new Intel CP U. The new LGA-775 pro cessor so cket is technically configured so that the contact between the socket (pin s)[...]

5 for other cards, e.g. mult imedia, TV ca rd, modem, the PCI slots are available. The trend is towards PCI Express X1. Slots for memory modules to equip the working m emory, so-called DIMM sockets (abbreviation for " D ual I n-Line M em ory M odules", memory modules with two rows of conta cts) are also components of the motherboard. The [...]

6 to process data. This means that two memory access action s are realised per clock pul se, thereby achieving double the transmission rate. With some memory modules, t he configuration of the memory banks is dependent on the motherboard’s chip set. Informatio n on this can be found in the motherboard do cumentation. Detailed information about sl[...]

7 Modern screen designs use the "Plug and Play" function to set the optimum parameters automatically . To do this, they use the DDC ( D isplay D ata C hannel). If the monitor an d the graphics card are DDC-compatible, they exchange t heir information via the operating system and adjust to one other optimally . Please follow the instructio[...]

8 ... for the memory settings of your graphics card If the graphics card is on board, a sectio n of the working memory is used as a graphics card memory. If, for applications that use a lot of memory (games etc.), it should be necessary to expand the grap hic memory, then it is possi ble to change it in the BIOS. The motherboard manual describe s h[...]

9 Deactivate the " DirectDraw acceleration " function. ... on connecting and the settings for a second screen output device (TV, monitor) If your PC is equipped with a second scre en connection, this is generally located on the rear of the PC; it can be that after a driver is reinstalled the playback screen of the seco nd output device (m[...]

10 by your PC, and then make the following settings on your computer: • Right click on the desktop and then click on " Properties " • In the " Display properties " windo w click on " Settings " and then on " Advanced " . • The settings specific to the graphi cs cards will appear. One or more tabs with t[...]

11 Analog TV cards With analog television, the picture and sound informat ion to be transmitted is prepared according to a modulation pro cess and forwarded on in wave form in a medium such as air or via a cable. This requires an analog TV card with analog antenna input. Digital TV cards A digital TV card is required to receive digital program mes [...]

12 i Our tips and hints … ... on DVB-C reception via cable Find out from your cable provider which programs you can re ceive digitally. ... on DVB-T reception via antenna This reception option is one of the most modern si gnal transmission technologies for TV reception and i s still not available everywhere. Find out from your dealer or via the I[...]

13 2.7 The soundcard It is no longer possible to imagine many application s without sound, e.g. DVD films, TV, games, Internet radio etc. Soundcards convert digital sign al s into analog signals that can be processed by speakers o r amplifiers (DA converter). When recording, e.g. with a microphone, analog sign als are converted into digital signals[...]

14 • Soundcard and SPDIF You will be able to tell if SPDIF is available on the sound card by the cinch socket or the digital optical sound conne ction labelled with SPDIF . If you want to use this signal, you will need a speaker system wit h a decoder that can process di gital signals. With a digital optical sound connectio n you will require a l[...]

15 With this audio standard, the majority of the pro cessing work is assigned to the main processor. It is re sponsible for synthesiser functions and mixes the digital data. The audio data is then converted and sent to a Codec. This then converts t he data into audio signals. In the recording direction, the Code c digitises the data and the process[...]

16 i Our tips and hints … ... Example AC97 setting Below, we illustrate how to make the appropriate settings using the example of the "ALC 650" Codec chip for AC 97. 1. Click on the icon in the bottom right of the task bar. 2. The following screen will appear. You can then select the language. Confirm with " OK ". 3. If you th[...]

17 ... Example of the HDA setting When you use an audio socket, the menu for the " Rea ltek " player automatically appears wi th the associated " Audio Wi zard ". The socket in use flashes. Fig.1: Front of the PC Fig. 2: Rear of the PC The appropriate so cket can be configured here. Fig. 3 Fig. 4 Here you can select the audio eq[...]

18 Fig. 5 ... for testing the microphone connection Some system configurations are sup plied with an activated front microphone connection as standard. If the microphone connection is not working, you should ch eck whether the microphone conne ction is activated. • Right click on the " Speaker icon " in the " Task bar ". • C[...]

19 Select " or " Alternative microphon e " and close the open window. This setting activates the microphone connection on the rear of the PC. (if necessary test as above) 2.8 Modem and ISDN card MODEM Modem is an abbreviation for " MOD ulator/ DEM odulator". The modem is a remote data transmission device, which • establis[...]

20 i Our tips and hints … ... for setting the country code When dialling country and area cod es, WindowsXP uses the settings that are entered under "Teleph ony" in the Control Panel. After installation of Windows a co untry, e .g. "United Kingdom", may already be entered under Locatio n/Country. This may lead to wrong numbers[...]

21 2.9 Wireless LAN (WLAN) WLAN stands for W ireless L ocal A rea N etwork, i.e. a cable-free network. The IEEE standard 802.11( I nstitute of E lectrical and E lectronics E ngineers) for wireless LA Ns (WLANs) offers two configuration methods for wirel ess networks, the ad-h oc mode and the infrastructure mode. Ad-hoc mode (peer-to-peer work group[...]

22 Infrastructure mode (AccessPoint) With a wireless AccessPoi nt your can operate a WLAN in the infrastructure mode. You may then con nect a wireless conn ection to several wireless devices within a specified area o r the range of the AccessPoint. Communication with the wirel ess nodes is via an antenna. In infrastructure mode, t he wireless Acces[...]

23 i Our tips and hints … ... on establishing WLANs Checking the hard ware and drivers Switch your WLAN adapter on. The op erating instructions for your device will tell you where to ac tivate the WLAN function. Proceed as follows: Click on " Start " > " Control Panel " > " Performance and Maintenance " > &q[...]

24 When you double click on the WLA N adapter, you will see its properties such as manufacturer, drive r version and date as well as resource settings. ... for configuring a WLAN connection 1. Click on " Start " > " Connect with " > " Wireless net work connection ". The following window will appear. Should there [...]

25 4. Activate the function " Use Windows to configure the settings ". Click on " Add “. The following appears:[...]

26 5. Enter the SSID in the " Network name (SSID) " field of the device to which the connection is to be established. The network names (SSID) ca n be obtained from the operator of the receiver. If the connection requires data encoding, activate the function " Data encoding " and enter the required key in the " Network key [...]

27 This completes the establishme nt of the WLAN connection. 2.10 Drives Device, which can write and rea d storage media such as diskettes or hard disks, in orde r to save data permanently, i.e. even after the power is turned off. 2.10.1 Floppy disk drive (optional) Your computer is optionally equippe d with a floppy disk drive. A diskette is a thi[...]

28 The table below shows which form ats can be processed: Comment DD 720 KB HD 1.44 MB ED 2.88 MB Motherboard dependent an d special floppy drive required To work with a 3½" disk, insert it into the drive with the label faci ng upwards and the read/write slot first. To remove the di sk, press the eject button; the disk can then be removed. Ej[...]

29 2.10.2 Hard disk The hard disk is a rigid disc, which i s coated with a magnetic substance and protected by a metal housing (ha rd disk drive). A hard disk drive essentially con sists of several discs, a spindle motor, read/write heads and a device for positioning the hea d. The hard disk is located inside your computer, but it can be exchanged.[...]

30 i Our tips and hints … ... for expanding your system If you wish to install an additional hard disk, refer to the motherboard description to determin e which connection options are available. 2.10.3 Optical drives Front view This is a basic overview of the controls. The manufacturer re serves the right to make technical cha nges / reconfigure [...]

31 Insert a thin item (e.g. a straightened paper cli p) into the emergency ejection openi ng and pr ess carefully until the drive opens. Pull the drive out by hand and remove the disk. This function is intended for emergencie s only. To avoid mechanical damage, this f unction should not norm ally be used. 3 LED Indicates when the drive is being acc[...]

32 3 Jumper The CD-ROM drive is configured via jumpers. The se determine how the device will be addressed by the IDE controller. If the jumper is set to Master, the dev ice works in Master mode, to Slave in Slave mode. If the jumper is set to CSEL, the device can be controlled with the help of the CSEL interface signal ( C able SEL ect). 4 IDE conn[...]

33 CD/DVD data carriers The CDs/DVDs available i n the market correspond to different standards. Not every CD/DVD can be read by every optical drive. CD-ROM Abbreviation for “ C ompact D isk - R ead O nly M emory”. A CD ROM is a CD storage medium, on which up to 700 Mb ytes of digitised data is stored. However, this data cannot be changed and c[...]

34 able to be played on European equipme nt and vice versa. For this purpose, the world was divided into six regions: 1. USA, Canada 2. Japan, Europ e, Middle East, South Africa 3. South-east Asia 4. Australia, South and Central America, New Zeal and 5. Africa, former USSR, India 6. China DVD drives resemble CD-ROM drives and are down wards compati[...]

35 i Our tips and hints … ... on playing DVDs with WinDVD Player With some DVD films, you may find that the picture freezes. A possible solution to this problem is that you nee d to disable " Accelerated hard ware decoding ". To do this, use the following setting: • Right click while WinDVD P layer is open. • In the subsequent menu,[...]

36 the fifth time, the code is retained as a permanent code; you should therefore be careful about changing it. If you set the same regional code as in the last insta llation, this is not registered as a change. This process i s determined on the hardware side and cannot be cancelled using software. Before buying a DVD video, you should che ck that[...]

37 3 Software 3.1 General Information Software is a chain of logic operations that tells the hardware, which operations are to be executed. These logic operation s are known as programs. The se programs consi st of commands and instruction sequence s. These are pr ocessed electroni cally in bits and bytes. A bit is the smallest unit of electronic i[...]

38 circumstances wh en blank CDs ar e inserted. Leave the Autostart function for the CD-RW driv e (burner) deactivated. ... for driver installation when restoring your system If you should need to re-install your system , we urgently recommend that, as far as possibl e, you backup all files before complete reinstallation. If you have carried out yo[...]

39 ... for automatically opening files of the same format Right click on a file icon (e.g. with the file extension .jpg ). Select " Open with " and click on " Select program ". The followin g screen will appear: Here, you can assign a file type to a program which you want to use to open files of that type. If you want this file [...]

40 3.2 The operating system The operating system is the "org aniser" of your comp uter; the operating system coordinates all functions e.g. for the grap hics card, the soundcard, the modem the network card an d the external devices using drivers. If your operating system should fail to start, or if faults should occur on your hard drive, [...]

41 i Our tips and hints … ... for creating a restore checkpoint • Click on " Start " / " Control Panel " / " Performance and Maintenance " and then on " System recov ery ". • Select the option " Create recov ery checkpoint " and then click on " Next ". • In the field " Descrip[...]

42 3.3 BIOS BIOS is the abbreviation for " B asic I nput O utput S ystem". The BIOS is the hardware-specific co re of an operating sy stem, which is not deleted when the system is turned off and is located in the EPROM. Data is written to this chip once, can only be read by the computer, and can only be chan ged at a later date using spec[...]

43 3.4 Drivers Drivers are program s, which allow interaction betwee n the computer, operating system and ot her components. It is therefore important to install the correct component drivers for the correct operating system. The drivers we have tested are coordinat ed with the component manufacturer and tailored for the system supplied and are nor[...]

44[...]

45 3.5 INTERNET The Internet is the world’s large st computer network, and consi sts of many individual networks linked to one another. The features or "services" of the Internet include ele ctronic mail (e-mail) and file transfer (FTP). When using Internet servi ces, it is important to use antiviral software and to update it regularly.[...]

46 ... for using antiviral software Fujitsu Siem ens Computers systems are always supplied w ith pre- installed antiviral software. If you have completely set up the antiviral software and you decide to purchase another piece of antiviral software, you must always uninstall the fully installed antiviral software properly first. Otherwise, installat[...]

47 4 Peripherals Peripherals are external co mponent s of the compute r, i.e. devices connected to the PC such as monitor, keyboard, print er, etc.. 4.1 Keyboard 4.1.1 Keyboard areas and important k eys The keyboard is the "actual" interface b etween the user and the computer. It is used to input command s. It is s imilar in design to a t[...]

48 With the straight design place the wri st support on a flat surface and press the keyboard down from abov e with the notches on the underside of the keyboard lined up with the pin s on the wrist support until it slots into place. The wrist support is intended for breaks during typing. You should not therefore rest the balls of your thumbs on the[...]

49 Main keyboard The layout of the main keyboard es sentially corresponds to that of a typewriter keyboard. Pressing a key generates the corre sponding character and moves the cursor forward by one position. Most keys have a repeat function, i.e. if y ou hold down the key, the entry of that character is repeated. Ho wever, there are a few country- [...]

50 keypad, it is possible to toggle between cursor movement and the input of numbers. The CAPS LOCK key <  > This key is used to enter upper ca se letters. If this key is engaged, the central LED ("Caps L ock" / "<  >" / "A") is illuminated on the keyboard. Pressing the CAPS LOCK key again reverses th[...]

51 Description of the Windows-specific keys: WIN key Function Description 1 st& 2nd key <Ctrl> + <Esc> Windows Manual Appendix Key combinations 3rdkey <Shift> + <F1 0> Windows Manual Appendix Key combination You can also work with this keyboa rd if you do not have Windows installed. If this is the case , these keys have [...]

52 The <Ins> key The <Ins> key is the Insert key. In the operatin g system mode, characters on the screen can be repla ced by being overwritten with a new character. The <In s> key can be switched to the inse rt mode, and the newly entered characte rs are inserted at the cursor position. Please note that the use of this key may be[...]

53 <  > moves the cursor one ch aracter to the left <Home> moves the cursor to the beginnin g of the line or to the top left corner of the screen <End> moves the cursor to the end of the line or to the bottom right corner of the screen <Page Down> moves the display one screen page down <Page Up> moves the display on[...]

54 Functions accessed by pressing several keys simultaneously The following key combinations are use d in the WINDOWS operating system control panel; their function is to some extent program-depende nt: <Ctrl> + <Al t> + <Del> System reboot Pressing the three keys si multaneously aborts the current program and reboot s the operati[...]

55 4.1.2 The multifunction keyboard Multifunction keyboards have additional keys (multimedia keys) which can be used to activate functions more quickly. The following description of the keys app lies for: Windows ME, Windows 2000, Windows XP. Previous track This button can be used to skip back to the previous track in the active play-back device. S[...]

56 4.1.3 Wireless keyboard If your PC comes with a wireless keyboard, usually in combination with a wireless mouse, please refe r to the special instructions in the accompanying manual. Using the key board The keyboard is configure d for ergonomic and h ealthy working. Awkward configuration of the i nput and output devices, incorrect arm or seat po[...]

57 i Our tips and hints … ... on the keyboard connection cable Should your keyboard be equipped with a keyboard where the conn ection cable and the keyboard are delivered separately, attach the  the circular 6-pin PS/2 plug (mini DIN connector, purple) to the co rresponding socket on the PC, and  the square 6-pin keyboard conne ctor to the [...]

58 4.2 Mouse The mouse is an input device which is guided by han d over a flat and horizontal surface. The reco rd ing of the movement takes place mechanically or optically. The mouse movement is analysed by the computer and the cursor is mov ed accordingly acro ss the screen. At appropriate positions, the mouse but tons can be used to activate act[...]

59 i Our tips and hints … ... ...for the function of the wheel mouse If you require further information about the functions of the wheel mouse and want to access the menus for assigning function s and changing the settings, the procedure is as follows: • Click on " Start " and select " Control panel ". • Click on the icon [...]

60 4.3 Monitor A monitor is, of course, part of the PC. It is the visual medium of communication between t he user and the machine. It is important that you follow the instructions relating t o ergonomics, which should be contained in the instruct ion manual for the monitor. These include: Correct posture, co rrect distance between the eyes and the[...]

61 5 Expansion of performance 5.1 Upgrading the system Your system is of a modular configuration. This mea ns that in general you have the option of upgrading your sy stem with various components and module s (e.g. working memory, ha rd disk, graphics card, etc.) obtainable from your spe cialist dealer or a computer shop. i Our tips and hints … .[...]

62 5.2 Opening and closing the housing CAUTION! Only qualified personnel should open the PC. Tampering with the unit will result in a loss of the right to guarantee claims and the discon tinuation of the manufacturer’s guarantee obligatio n. Compliance with the harm onised standards according to the legislation regardi ng electromagnetic compatib[...]

63 Opening the housing SCALEO L / SCALEO P 0 1 2 1 SCALEO T 2 1 3[...]

64 SCALEO 600 1 2 3 90° 0 1 SCALEO 800 1 2 3 90° push 0 1[...]

65 Closing the housing Follow the opening process in reve rse to close the PC. i Our tips and hints … ... on the SCALEO X With the SCALEO X , during assembly the locking m echanism locks in place itself by pressing on the side wall, a s shown in step 1. CAUTION! When closing the housing, ensure that th e cover is firmly and correctly in place. Ch[...]

66 Removing the slot cover when slot cover screwed in place • Loosen the screws on the slot cover in que stion and remove the cover. • Install the expansion mo dule in accordance with the manufacturer’s instru ctions. • Fix the module in place wit h t he screws from the slot cover. • Follow the op ening process in reverse to close the PC.[...]

67 5.4 Installing additional hard disks and drives Your PC also gives you the option of installing additional hard di sks (HD) or drives. Once you have opened the housing in accordan ce with all of the aforementioned safe ty instructions, you can use the technical options available to enhance your system. (1) Clip for securing additional components[...]

68 6 Troubleshooting (FAQ) There are two general types of error message: • Softwa re error me ssages • System error messag es 6.1 Software error messages Software error messages are displayed on the scre en by the operating system or an application. These me ssages generally appear after you have started the operating system or whe n you run an[...]

69 • The worst-case scenario is that the operating system has been damaged, e.g. by a virus. If this is the case, execute a "complete reinstallation of the operating system". • If you correctly follow the instructions under "Complete reinstallation of the operating sy stem" and rein stallation is still not possible, there co[...]

70 • Check the display settings. Y ou will find further information on this subject in the operating instruction s for your monitor. The keyboard is producing characters other than those shown on the keys. • Check the display light on the keyboard to make sure that the NUM LOCK or CAPS LOCK KEYS are not activated. The relevant LED at the top ri[...]