If ever my PB goes to sleep with the lid open, -and- I go close the lid, it will not wake regardless of what I press. Or When I do a keyboard sleep (Apple+Option+Eject) and then close the lid it will not open. Otherise, if i just close the lid there are no problems. Or if I leave the lid open while sleep happens it doesn't wake up. I need to close the lid when I take it to school, after using it. There are no USB devices attached. It doesn't matter wheter I'm using cord or battery power. I'm using 10.3.1 with 256 MB Ram. With no programs running... Ideas?