Dell Inspiron 1720 View - Page 127

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. 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 99. 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 130. Video and Display Problems Fill out the "Diagnostics Checklist" on page 176 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. Troubleshooting 127