FC5T3 my keyboard is possessed

[gb spam]

I've installed 5T3 on a Sony Vaio PCG Z600TEK, and all was fine as I
was only using it through VNC.  Then when I use the laptop directly, I
find that some of the keys are borked:

Pressing 'jkl' gives me '123'
Pressing 'uio' gives me '456'
Pressing 'm gives me a 0

It looks like it has some sort of numerical keypad superimposed.

Needless to say, through VNC there is no problem.

ctrl-alt-backspace doesn't kill X either.

A reboot gives brief respite from the problem, but within a minute I
can no longer email my friend jkluiom.

//scratches head...//