Keyboard Locked

Yesterday evening I had a weird problem, I could use my mouse on my laptop but I couldn't use my keyboard,
After an init 3 init 5 , I could log on (using the keyboard) but once logged on again I still couldn't use the keyboard.

On hardware level the keyboard was working but it seemed somehow my session was configured not to allow keyboard input.
I could log on as another user, from there the keyboard worked. So I was pretty sure it was a setting somewhere that got enabled by accident
(I blame SCSI or Floesie)

It ended up being the Keyboard Accesibility Features enabled
on my FC6 box hidden behind System/Preferences/Accesibility/Keyboard , disabling it again gave me full access to my keyboard.