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Contents 5
Scanner Problems . . . . . . . . . . . . . . . . . . . . . . . . . 47
Sound and Speaker Problems
. . . . . . . . . . . . . . . . . . . 48
No sound from speakers . . . . . . . . . . . . . . . . . . . . . 48
No sound from headphones
. . . . . . . . . . . . . . . . . . . 49
Video and Monitor Problems
. . . . . . . . . . . . . . . . . . . . 50
If the screen is blank . . . . . . . . . . . . . . . . . . . . . . 50
If the screen is difficult to read . . . . . . . . . . . . . . . . . 51
3 Advanced Troubleshooting
Using System Restore . . . . . . . . . . . . . . . . . . . . . . . 54
Creating a Restore Point
. . . . . . . . . . . . . . . . . . . . 54
Restoring the Computer to an Earlier Operating State . . . . . . 54
Undoing the Last System Restore
. . . . . . . . . . . . . . . . 55
Drivers
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
What Is a Driver?
. . . . . . . . . . . . . . . . . . . . . . . . 56
Identifying Drivers
. . . . . . . . . . . . . . . . . . . . . . . 56
Reinstalling drivers
. . . . . . . . . . . . . . . . . . . . . . . 57
Resolving Software and Hardware Incompatibilities
. . . . . . . 58
Reinstalling Windows
®
XP . . . . . . . . . . . . . . . . . . . . . 59
Before You Reinstall
. . . . . . . . . . . . . . . . . . . . . . 59
4 Adding Parts
Front and Back View of the Computer . . . . . . . . . . . . . . . 64
Front View
. . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Back View . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Removing the Computer Cover . . . . . . . . . . . . . . . . . . . 67
Looking Inside Your Computer
. . . . . . . . . . . . . . . . . . . 69
System Board
. . . . . . . . . . . . . . . . . . . . . . . . . . 70
Adding Cards
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 71