8Contents
Power Problems . . . . . . . . . . . . . . . . . . . . . 94
Ensuring Sufficient Power for Your Computer . . . 95
Printer Problems . . . . . . . . . . . . . . . . . . . . . 95
Scanner Problems . . . . . . . . . . . . . . . . . . . . 96
Sound and Speaker Problems . . . . . . . . . . . . . . 97
No sound from integrated speakers . . . . . . . . 97
No sound from external speakers . . . . . . . . . 97
No sound from headphones . . . . . . . . . . . . 98
Touch Pad or Mouse Problems . . . . . . . . . . . . . 98
Video and Display Problems . . . . . . . . . . . . . . 98
If the display is blank . . . . . . . . . . . . . . . . 99
If the display is difficult to read . . . . . . . . . . 99
If only part of the display is readable . . . . . . . 100
Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . 100
What Is a Driver? . . . . . . . . . . . . . . . . . . 100
Identifying Drivers . . . . . . . . . . . . . . . . . 100
Reinstalling Drivers and Utilities . . . . . . . . . . 101
Resolving Software and Hardware
Incompatibilities . . . . . . . . . . . . . . . . . . . . . 103
Restoring Your Operating System . . . . . . . . . . . . 104
Using Microsoft Windows XP System
Restore . . . . . . . . . . . . . . . . . . . . . . . 104
Using Dell PC Restore by Symantec . . . . . . . . 106
Using the Operating System Media . . . . . . . . 108
book.book Page 8 Tuesday, July 3, 2007 12:31 PM