Dell Inspiron 1721 View - Page 125

CHECK THE MOUSE CABLE - Shut down the computer, disconnect the mouse cable and check it for damage, then firmly reconnect the cable. If you are using a mouse extension cable, disconnect it and connect the mouse directly to the computer. 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 97. 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 128. Video and Display Problems Fill out the "Diagnostics Checklist" on page 174 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. Troubleshooting 125