PB doesn't wake up anymore !!

[Tomaz]

I have a problem with my brandnew powerbook. I sometimes let it run over night, I set the energy setting that only the screen turns off after 3 min, the rest should keep running. Then in the morning, the PB doesn't wake up anymore. it's clearly still running, but the screen doesn't come back on. No matter what I press (space, mouse, any key, on/off button..), I get no reaction at all. The only thing I can do is to restart by pressing "function-ctrl-on/off button".
Anyone have this problem too or knows what to do ?
Thanks a lot.





edit: spelling..