Contents 9Printer Problems . . . . . . . . . . . . . . . . . . . . 119Scanner Problems . . . . . . . . . . . . . . . . . . . . 120Sound and Speaker Problems . . . . . . . . . . . . . 120No sound from integrated speakers . . . . . . . . 120No sound from external speakers . . . . . . . . . 121No sound from headphones . . . . . . . . . . . . 121Touch Pad or Mouse Problems . . . . . . . . . . . . . 121Video and Display Problems . . . . . . . . . . . . . . 122If the display is blank . . . . . . . . . . . . . . . . 122If the display is difficult to read . . . . . . . . . . 123If only part of the display is readable . . . . . . . 124Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . 124What Is a Driver? . . . . . . . . . . . . . . . . . . 124Identifying Drivers . . . . . . . . . . . . . . . . . 125Reinstalling Drivers and Utilities . . . . . . . . . . 125Troubleshooting Software andHardware Problems in the Windows Vista®Operating System . . . . . . . . . . . . . . . . . . . . 127Restoring Your Operating System . . . . . . . . . . . . 128Using Windows Vista System Restore . . . . . . . 12812 Adding and Replacing Parts . . . . . . . . . 133Before You Begin . . . . . . . . . . . . . . . . . . . . 133Recommended Tools . . . . . . . . . . . . . . . . 133Turning Off Your Computer . . . . . . . . . . . . . 133Before Working Inside Your Computer . . . . . . . 134
