So I left my computer for a bit with a few apps like iChat and Safari open, did what I had to do and came back to it. However, the screen went to sleep, but I didn't wake up when I sat down, touched the keys, etc. I tried the brightness controls on the keyboard, but to no avail. Has anyone else had this problem? I could make out a few things... but only dark shadows. I think the brightness was all the way off Oh ya, so I restarted and all is well, I just wondered if this is a common thing or my computer just misbehaving.