Thinking? Different.

My Powerbook (little Gordon, as he is affectionately known) has been getting really hot lately, just above the keyboard, near all the little ports in the back.

It's not a battery problem, not part of Apple's recent battery recall. I'm not doing anything that's different from my usual routine. So I called Apple Care and talked to some tech guys, who -- after about thirty minutes on the phone with me -- recommended I take the computer to an authorized Apple service provider. "Here's your case number. Have a technician measure its heat output to make sure it's within recommended limits."

Fortunately, we live near an Apple retail store, which has a "Genius Bar." You make a reservation, you take your computer in, you sit at the bar and have a chat with an alleged genius.

My genius was nice, and quite complimentary. "You've kept this in great condition," he said, as though he were accustomed to serving vast unwashed masses of "creatives" who belly up to the Genius Bar with expensive laptops coated in nicotene residue and Jackson Pollack inspired splashes of four-dollar nonfat organic latte.

After we let Gordon run and play for a few minutes, my dear little genius took him to The Back of The Store to talk to some of The Other Tech Guys. Verdict?

"I've never owned this model, but I knew a few of The Other Tech Guys In The Back have. They said theirs always got really hot, too -- sometimes so hot you couldn't touch the power button. This one's a little warm, but there's nothing technically wrong with it that we can fix."

Mmkay. So I asked him if there's anything specific I should be on the lookout for. His genius answer:

"Smoke."

Oh, well. At least when everything catches fire, it'll still be under warranty.