Dell PP22L Manual do Utilizador descarregar pdf (Página 143)

Troubleshooting 143

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 —

Shut down the computer.

Disconnect the mouse.

Turn on the computer.

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.

CHECK THE SYSTEM SETUP PROGRAM SETTINGS — 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 MOUSE CONTROLLER — 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 113.

REINSTALL THE TOUCH PAD DRIVER — See "Reinstalling Drivers and Utilities"

on page 146.

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.

HECK 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.

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Dell PP22L Manual do Utilizador Página 143