Dell XPS M1210 Owner's Manual - Page 104

TO VERIFY THAT THE PROBLEM IS WITH THE MOUSE, CHECK THE TOUCH PAD - 1 Shut down the computer. 2 Disconnect the mouse. 3 Turn on the computer. 4 At the Windows desktop, use the touch pad to move the cursor around, select an icon, and open it. If the touch pad operates correctly, the mouse may be defective. R E I N S T A L L T H E T O U C H PAD D R I V E R - See "Reinstalling Drivers and Utilities" on page 106. Video and Display Problems 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 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 the extension cable to verify that the computer turns on. ADJUST THE POWER PROPERTIES - Search for the keyword standby in the Windows Help and Support Center. To access the Help and Support Center, see "Windows Help and Support Center" on page 13. SWITCH THE VIDEO IMAGE - If your computer is attached to an external monitor, press to switch the video image to the display. If the display is difficult to read A DJUST T H E BRIGHTNESS - Press and the up- or down-arrow key. M O V E T H E E X T E R N A L S U B W O O F E R A W A Y F R O M T H E C O M P U T E R O R M O N I T O R - If your external speaker system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the computer or external monitor. ELIMINATE POSSIBLE INTERFERENCE - Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances. R O T A T E T H E C O M P U T E R T O F A C E A D I F F E R E N T D I R E C T I O N - Eliminate sunlight glare, which can cause poor picture quality. 104 Troubleshooting