Dell OptiPlex GX280 - Manual (Page 151)

1. Click the Start button, click Control Panel, and then click Printers and Other Hardware.
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.
If you are using a PS/2 mouse
1. Enter system setup and ensure that the Mouse Port option is set to On.
2. Exit system setup and restart the computer.
Reinstall the mouse driver
Run the Dell Diagnostics
Check for software and hardware conflicts
Network Problems
Fill out the Diagnostics Checklist as you complete these checks.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in
the Product Information Guide.
Check the network cable connector — Ensure that the network cable is firmly inserted into both the
network connector on the back of the computer and the network jack.
Check the network lights on the front or back of the computer depending on system chassis type. —
No connection speed light indicates that no network communication exists. Replace the network cable.
Restart the computer and log on to the network again
Check your network settings — Contact your network administrator or the person who set up your network
to verify that your network settings are correct and that the network is functioning.
Check for software and hardware conflicts
Power Problems
Fill out the Diagnostics Checklist as you complete these checks.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in
the Product Information Guide.
If the power light is green and the computer is not responding — See " Diagnostic Lights ."
If the power light is blinking green — The computer is in standby mode. Press a key on the keyboard or
move the mouse to resume normal operation.