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Contents 9
Sound and Speaker Problems . . . . . . . . . . . . . 124
No sound from integrated speakers
. . . . . . . . 125
No sound from external speakers
. . . . . . . . . 125
No sound from headphones
. . . . . . . . . . . . 125
Touch Pad or Mouse Problems
. . . . . . . . . . . . . 126
Video and Display Problems
. . . . . . . . . . . . . . 127
If the display is blank
. . . . . . . . . . . . . . . . 127
If the display is difficult to read
. . . . . . . . . . 127
If only part of the display is readable
. . . . . . . 128
Drivers
. . . . . . . . . . . . . . . . . . . . . . . . . . 128
What Is a Driver?
. . . . . . . . . . . . . . . . . . 128
Identifying Drivers
. . . . . . . . . . . . . . . . . 129
Reinstalling Drivers and Utilities
. . . . . . . . . . 129
Troubleshooting Software and Hardware
Problems
. . . . . . . . . . . . . . . . . . . . . . . . . 132
Restoring Your Operating System
. . . . . . . . . . . . 132
Using Microsoft
Windows System Restore . . . . 133
Using Dell PC Restore by Symantec
. . . . . . . . 133
Using the Operating System Media
. . . . . . . . 136
12 Adding and Replacing Parts . . . . . . . . . 139
Before You Begin . . . . . . . . . . . . . . . . . . . . 139
Recommended Tools
. . . . . . . . . . . . . . . . 139
Turning Off Your Computer
. . . . . . . . . . . . . 139
Before Working Inside Your Computer
. . . . . . . 140