• Parallel port problems. • Sound problems. • General operating problems. • Display problems. • Keyboard problems. • Power and startup problems. • Lockup problems. Printing Problems • In Windows Help, use the printing troubleshooter. • See “To install a printer” . • For a serial printer, check that you’re using a proper cable or cable adapter. • For an infrared printer, check the following: Make sure the infrared light path is not blocked. Make sure the infrared printer is IrDA compatible. If you’re printing to an infrared printer, make sure its port is set to LPT3 or COM4. Check the printer’s property sheet. An HP Deskjet 600C or 680C needs to use COM4 (not LPT3).
Make sure Windows is running—infrared printing is supported only while Windows is running. Make sure you have not disabled IrDA support on your OmniBook. Start Infrared Monitor before you print. In Control Panel, double-click Infrared. For infrared printing from an MS-DOS program, run the program in an MS-DOS Prompt window instead of in MS-DOS mode. You might need to re-align the IR ports of the printer and the OmniBook. • For a parallel printer connected to the OmniBook, check the following: Check that you’re using a standard parallel printer cable. Verify that the printer port and the audio port do not use the same interrupt value.
• If you can print from another application, check the current application. The application itself may be at fault. Memory Problems • In Windows Help, use the memory troubleshooter. • If you’re having memory problems running MS-DOS programs, in Windows Help use the MS-DOS troubleshooter. 66