Pressing num-lock keys causes applications to crash

I have a problem with the standard Apple USB keyboard. If I press any key on the num lock pad all my applications crash. It really doesn´t matter if it is e.g. Quark, Mail or any other application.
Need some help.
Kind regards,
Markus

hey Tobsel,
as far as i know, there should not be any issues if that process is killed. However, your num lock key may or may not work sporadically.
For which ThinkVantage software has it, it is both the Power Management as well as the Hotkeys
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