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
3Advanced 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
4Adding 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