Troubleshooting and Maintenance 
  Troubleshooting Your Computer 
    Corporate Evaluator’s Guide  171 
•  Restart the computer: click Start, Shut Down (or Turn Off Computer), Restart. 
•  Check mouse settings in Control Panel: click Start, Settings, Control Panel, then 
double-click Mouse (Windows 98 or 2000), or click Start, Control Panel, Printers and 
Other Hardware, Mouse (Windows XP). 
•  Make sure the serial port is enabled in BIOS Setup—see “To run the BIOS Setup 
utility” on page 177. 
•  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 (HP accessory F1469A). 
•  Check the port settings in Control Panel. Open the hardware Device Manager, then 
double-click Ports (COM & LPT).  
If a serial modem doesn’t work properly 
•  See “Modem Problems” on page 162. 
•  Make sure the port connection is secure. 
•  Use the Modem troubleshooter in Windows Help: click Start, Help (or Help and 
Support). 
•  In Control Panel, open Modems (Windows 98) or Phone and Modem Options 
(Windows 2000 and XP), and check the modem settings. 
•  Make sure the serial port is enabled in BIOS Setup—see “To run the BIOS Setup 
utility” on page 177. 
•  Disable the internal modem:  
1.  Open the hardware Device Manager: click Start, Settings, Control Panel, System 
(Windows 98 or 2000) or Start, Control Panel, Performance and Maintenance, 
System (Windows XP). 
2.  Double-click Modem to list the current modem devices. 
3.  Double-click the internal modem, then select the option to disable the modem. 
•  Check the port settings in Control Panel. Open the hardware Device Manager, then 
double-click 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 
double-click Ports (COM & LPT).