![](/images/new-backgrounds/1203177/20317715x1.webp)
Network Problems | 99 |
Wireless Local Area Network (WLAN) | 99 |
Mobile Broadband (Wireless Wide Area Network) | 100 |
Power Problems | 100 |
Ensuring Sufficient Power for Your Computer | 101 |
Printer Problems | 101 |
Scanner Problems | 102 |
Sound and Speaker Problems | 102 |
No sound from integrated speakers | 103 |
No sound from external speakers | 103 |
No sound from headphones | 103 |
Touch Pad or Mouse Problems | 103 |
Video and Display Problems | 104 |
If the display is blank | 104 |
If the display is difficult to read | 104 |
If only part of the display is readable | 105 |
Drivers | 105 |
What Is a Driver? | 105 |
Identifying Drivers | 105 |
Reinstalling Drivers and Utilities | 106 |
Resolving Software and Hardware Incompatibilities | 108 |
Restoring Your Operating System | 108 |
Using Microsoft Windows XP System Restore | 108 |
Using Dell PC Restore by Symantec | 110 |
Using the Operating System CD | 112 |
12 Adding and Replacing Parts | 113 |
Before You Begin | 113 |
Recommended Tools | 113 |
Turning Off Your Computer | 113 |
Before Working Inside Your Computer | 114 |
Optical Drive | 115 |
8
Contents