And not hot in the good way... I turned my Macbook off for about three hours to watch a movie. I hadn't had it on any longer than an hour prior to turning it off. But after picking it up to turn it back on just now, I practically burned my hand on it. It's been off for THREE hours... I'm assuming this is a bad sign. However, I know I didn't overwork it prior to turning it off. No hissing or mooing. Any suggestions? I mean could this be a serious problem?