Mac Geekery

Plug a USB keyboard into a Mac laptop computer.
and bring up KEYBOARD VIEWER

Type one key on the laptop keyboard, then type one key on the USB keyboard
(the KEYBOARD VIEWER graphical interface will then change to match the USB
keyboard). Now click with a USB mouse or your trackpad on a key on the
KEYBOARD VIEWER, the graphical interface for the KEYBOARD VIEWER
will then revert back to the laptop keyboard.

What I want to do is make the laptop completly ignore the laptop keyboard.
(Or think that the only keyboard that exists is the USB keyboard)
Note: physically removing the physical keyboard does not work.

Any ideas anybody?

I guess what I want to to is something like you can do in the system preferences where you can get the laptop to ignore the trackpad when a USB mouse is attached.

EXTRA INFO:
My ibook types these keys by itself sometimes: F10 0 = p ] ; ‘ / RETURN.
I used Ukelele (Software) to delete these keys and reassign them to other keys to create a unique keyboard layout. Then I physically removed and switched around keys on a USB keyboard (the numpad gave me all the extra keys I need).
My iBook is pretty much under control now, but when it malfunctions it always trys to revert to the iBook keyboard (it taps away on keys on the deleted keys).

If I run the Apple Hardware Test CD when the computer is malfunctioning then a VIDEO RAM ERROR will come up with the error code

2ATI/2/4: 113-xxxxx-142

If I run the Apple Hardware Test CD when the computer is NOT malfunctioning then no error code will come up.

Apple told me to replace my logic board. I don’t want to replace my logic board, so please do not reply to this post saying that I need to replace my logic board.

Thanks, I would really appreciate it if someone could help.

iBook G4, 12”, 1.2Ghz, 256Mb RAM, 30GB HD, OS 10.3.9