Dell Vostro 1200 Owner's Manual - Page 95
Touch Pad or Mouse Problems, Start, Control Panel, Printers and Other Hardware, Mouse - fan control software
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E L I M I N A T E PO S S I B L E I N T E RF E R E N CE - Turn off nearby fans, fluorescent lights, or halogen lamps to check for interference. RUN THE SPEAKER DIAGNOSTICS R E I N S T A L L T H E S O U N D D RI VE R - See "Drivers" on page 105. R U N T H E H A R D W A R E TR O U B L E S H O O T E R - See "Hardware and Software Problems" on page 110. No sound from headphones C H E C K T H E H E A D P H O N E C A B L E C O N N E C T I O N - Ensure that the headphone cable is securely inserted into the headphone connector (see "Right Side View" on page 24). AD J U ST T H E W I N D O W S V O L U M E C O N T R O L - Click or double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is turned up and that the sound is not muted. Touch Pad or Mouse Problems CHECK THE TOUCH PAD SETTINGS - 1 Click Start→ Control Panel→ Printers and Other Hardware→ Mouse. 2 Try adjusting the settings. CHECK THE MOUSE CABLE - Shut down the computer. Disconnect the mouse cable, check it for damage, and 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. Troubleshooting 95