Dell Inspiron 1521 - Page 9

Contents 9
Sound and Speaker Problems . . . . . . . . . . . . . 122
No sound from integrated speakers
. . . . . . . . 123
No sound from external speakers
. . . . . . . . . 123
No sound from headphones
. . . . . . . . . . . . 123
Touch Pad or Mouse Problems
. . . . . . . . . . . . . 124
Video and Display Problems
. . . . . . . . . . . . . . 125
If the display is blank
. . . . . . . . . . . . . . . . 125
If the display is difficult to read
. . . . . . . . . . 125
If only part of the display is readable
. . . . . . . 126
Drivers
. . . . . . . . . . . . . . . . . . . . . . . . . . 126
What Is a Driver?
. . . . . . . . . . . . . . . . . . 126
Identifying Drivers
. . . . . . . . . . . . . . . . . 127
Reinstalling Drivers and Utilities
. . . . . . . . . . 127
Troubleshooting Software and Hardware
Problems
. . . . . . . . . . . . . . . . . . . . . . . . . 130
Restoring Your Operating System
. . . . . . . . . . . . 130
Using Microsoft
Windows System Restore . . . . 131
Using Dell PC Restore by Symantec
. . . . . . . . 131
Using the Operating System Media
. . . . . . . . 134
12 Adding and Replacing Parts . . . . . . . . . 137
Before You Begin . . . . . . . . . . . . . . . . . . . . 137
Recommended Tools
. . . . . . . . . . . . . . . . 137
Turning Off Your Computer
. . . . . . . . . . . . . 137
Before Working Inside Your Computer
. . . . . . . 138