IBM T23: no Num-lock and Scroll-lock

[Michael Bach (gmx)]

Hello,

I just discovered a strange problem after upgrading from 6.10 to 7.04:

When I press the numlock key on my laptop, I hear a short sound with 
constant pitch. If I keep on pressing, the sound toggles the pitch. The 
num-lock led does not toggle however, it stays off. The scroll-lock led 
does not come on either.
If press the print-screen key, Ksnapshot pops up.

Any suggestions?

regards, Mike