Kernel Hangs looking for CDROM

Hi, I have Debian Sid, with kernel 2.4.25-1-386. Sometimes, say every 20-30 minutes, everything freezes. Thats what appears in kernel.log: Aug 10 18:14:12 localhost kernel: sbpcd-0 [02]: Scanning 0x340 (LaserMate)... Aug 10 18:14:45 localhost kernel: sbpcd-0 [03]: Scanning 0x340 (SoundBlaster

Matlab on debian

Hello, I'm using Matlab for linux, over a Debian with kernel 2.6.7 (but I've the same results over 2.4.5), everhing works, except a thing. If I have NumLock enabled Matlab fails to get keyboard input (can't write nothing). When NumLock is disabled everithing works fine. Does anyone know how to