Can someone give me a hand please? I installed knoppix to the hard drive on my Toshiba Satellite and everything works great. Only problem is most of the time when I shut down my computer or try to reboot or even log out to try and change users via X windows the screen completely goes black and I can do nothing to bring any sort of command prompt or gui up. The only thing I can do at this point is press the power button and let knoppix (or by now its debian) run up.

Anyone know why the screen goes black? Any way I can fix this or go around it? The funny thing is sometimes it shuts down completely flawlessly but usually it will die right after I click 'ok' to reboot or halt.

Please help me.
I love you all.. in advance