User's Guide
External Keyboard Problems
Fill out the Diagnostics Checklist as you perform the various checks.
2. Click Mouse.
3. Try adjusting the settings.
Windows 2000
1. Click the Start button, point to Settings, and then click Control Panel.
2. Double-click the Mouse icon.
3. 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.
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
.
Reinstall the touch pad driver — See "Reinstalling Software."
NOTE: Use the integrated keyboard when working in MS-DOS® mode or when running the Dell
Diagnostics or the system setup program. When you attach an external keyboard, the integrated
keyboard remains fully functional.
Check the keyboard cable — Shut down the computer. Disconnect the keyboard cable and
check it for damage, and firmly reconnect the cable.
If you are using a keyboard extension cable, disconnect it and connect the keyboard directly to
the computer.
Check the external keyboard —
1. Shut down the computer, wait 1 minute, and turn it on again.
2. Verify that the numbers, capitals, and scroll lock lights on the keyboard blink during the
boot routine.
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