Dell Vostro 500 Owner's Manual - Page 98

C H E C K T H E S YS T E M S E T U P P R O G R A M S E T T I N G S - Verify that the system setup program lists the correct device for the pointing device option (the computer automatically recognizes a USB mouse without making any setting adjustments). TEST THE M O U S E C O N T R O L L E R - To test the mouse controller (which affects pointer movement) and the operation of the touch pad or mouse buttons, run the Mouse test in the Pointing Devices test group in the "Dell Diagnostics" on page 75. R E I N S T A L L T H E T O U C H P A D D R I V E R - See "Reinstalling Drivers and Utilities" on page 100. Video and Display Problems Fill out the "Diagnostics Checklist" on page 131 as you complete these checks. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. If the display is blank NOTE: If you are using a program that requires a higher resolution than your computer supports, it is recommended that you attach an external monitor to your computer. CHECK THE BATTERY - If you are using a battery to power your computer, the battery charge may be depleted. Connect the computer to an electrical outlet using the AC adapter, and then turn on the computer. TEST THE ELECTRICAL OUTLET - Ensure that the electrical outlet is working by testing it with another device, such as a lamp. CHECK THE AC ADAPTER - Check the AC adapter cable connections. If the AC adapter has a light, ensure that the light is on. C O N N E C T T H E C O M P U T E R D I R E C T L Y T O A N E L E C T R I C A L O U T L E T - Bypass power protection devices, power strips, and extension cables to verify that the computer turns on. AD J U S T T H E P O W E R P R O P E R T I E S - Search for the keyword sleep in Windows Help and Support. S WITCH THE VIDEO IMAGE - If your computer is attached to an external monitor, press to switch the video image to the display. 98 Troubleshooting