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Reference Guide 111
Serial, Parallel, and USB Problems
If the serial mouse doesn’t work
• First, make certain you followed the manufacturer’s installation instructions
completely and have installed the mouse properly.
• Check that the cable is properly connected.
• Check settings in Control Panel (and in Windows NT Diagnostics).
• Make sure the serial port is working—see the next heading.
If the serial or parallel port is not working
• Check that the cable is properly connected.
• Check settings in Control Panel (and in Windows NT Diagnostics).
• Check settings in BIOS Setup.
1. From the Start menu, shut down, then restart the OmniBook.
2. When you see the HP logo, press F2 to enter the BIOS Setup utility.
3. From the System Devices menu, check that Parallel and Serial are enabled.
If a serial modem doesn’t work properly
• Click Start, Help and use the Modem Troubleshooter. If you’re using Windows 2000,
click Start, Help, Troubleshooting, and Modem.
• Check that the cables are properly connected.
• Check settings in Control Panel (and in Windows NT Diagnostics).
• Make sure the serial port is working—see the previous heading.
If the USB port is not working
• Windows NT 4.0 does not support USB devices.
• Check settings in Control Panel.
• Contact the vendor of the peripheral device, as well as the OmniBook website, for the
latest versions of the USB drivers.