Everything was totally normal, and then I left my desk for awhile to get some food and drinks. When I cam back, my display became unreadable! (The display was off during idle, but the computer was not). It's a 15" powerbook hooked up to a Cinema display. So I unhook my external display to see if its a display problem, and connected it to another mac and it displays just fine. But the powerbook's display is still messed up. It's hard to describe, but there's vertical blotches making a hatch pattern across the entire screen, making everything unreadable. I've tried resetting the powerbook a few times, but no success, display is still messed up. I haven't tried reinstalling the OS yet, but I don't know if that'll help. I've tried resetting the PMU and that didn't do anything either. I'm at a complete loss for the moment. The only thing I had to visually document this was my phonecam. Although the images are crappy, it pretty much shows what the problem looks like. If anyone can help me figure this problem out, I would be forever indebted! Thanks in advance!