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Troubleshooting and Maintenance
Troubleshooting Your Notebook
Reference Guide 79
Serial, parallel, and USB problems
If a serial mouse doesn’t work
Make sure you followed the manufacturers installation instructions completely
and have installed the mouse properly. If not, repeat the procedure.
Make sure the port connection is secure.
Restart the notebook. Select Start > Turn Off Computer > Restart.
Check mouse settings in Control Panel. Select Start > Control Panel > Printers
and Other Hardware > Mouse.
Use a mouse that connects to the USB or PS/2 port. If you have a PS/2 keyboard
connected, use a PS/2 Y adapter.
Check the port settings in Control Panel. Open the hardware Device Manager,
then select Ports (COM & LPT).
If a serial modem does not work properly
Make sure the port connection is secure.
Use the Modem troubleshooter in Windows Help. Select Start > Help and
Support.
In Control Panel, open Phone and Modem Options, and check the modem
settings.
Disable the internal modem:
1. Open the hardware Device Manager. Select Start > Control Panel >
Performance and Maintenance > System.
2. Select Modem to list the current modem devices.
3. Select the internal modem, then select the option to disable the modem.
Check the port settings in Control Panel. Open the hardware Device Manager,
then select Ports (COM & LPT).
If the serial or parallel port is not working
Make sure the port connection is secure.
Check the port settings in Control Panel. Open the hardware Device Manager,
then select Ports (COM & LPT).
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