I've had my 15" PowerBook for just over six months now, but a few problems have been cropping up, most noatbly with heat. The area around the power jack has warped, making it difficult to charge the computer. Yesterday, though, my PowerBook got so hot as to give me a second degree burn! I was sitting on the couch, with the laptop on my lap; the corner by the power jack started getting a bit too warm, so I took it off. That spot was a bit hot for the rest of the day, but I thought nothing of it. This morning, though, when I woke up, a huge blister had appeared! I know this should NOT be happening. Has anybody else had a similar experience, or know of a way to solve the heat issue? The only place I use the PowerBook other than a desk or table is on my lap, a place I thought it would have enough ventilation. If it weren't for me need for portability, I'd trade for an iMac G5, but alas, that won't work.