HP 900 Reference Manual page 105

Reset the OmniBook. See "To reset the OmniBook" on page 21.
If the embedded numeric keypad doesn't work
Make sure the embedded Keypad Lock (Fn+F8) is on—or that you press and hold the
Fn key to temporarily access the embedded keypad.
To type numbers, make sure Num Lock is on.
If an external mouse doesn't work
Suspend the computer before connecting or unplugging an external PS/2 mouse. If the
mouse or computer don't work properly, try suspending and resuming (Windows
95/98) or shutting down and restarting (Windows NT).
If a special feature on the PS/2 mouse doesn't work
The built-in pointing devices must be disabled for special mouse features to work. In
the BIOS Setup utility, check that the PS/2 Pointing Devices option is set to Auto in
the System Devices menu. See "To run the BIOS Setup utility" on page 86.
Press the blue power button to suspend the OmniBook, then press it again to resume.
Make sure you installed any drivers shipped with the mouse.
For Windows 95, the mouse driver may not support Suspend mode. Try using Mouse
Control Panel to reselect the scrolling function, if available. If necessary, reboot the
computer to restore operation.
If left CTRL + left ALT doesn't work on an external keyboard
Left CTRL + left ALT should work like the Fn key on an external keyboard. In BIOS
Setup, check that External Fn Key is enabled in the System Devices menu. See "To
run the BIOS Setup utility" on page 86.
If you can't type the euro symbol
Hold ALT GR when you press the marked key.
The euro symbol is not on the U.S. English keyboard. Make sure the embedded
keypad is active (Fn+F8) and Num Lock is on, then hold ALT while typing 0128 on
the numeric keypad.
For Windows NT, if you select a different keyboard layout in Control Panel, you must
reinstall the euro software. In Explorer, double-click
\Omnibook\Drivers\Euro\Nt4_euro.exe on drive C or on the Recovery CD.
Troubleshooting
Solving Problems
Reference Guide 105