Mine has the same problem as all of you (I skimmed through the thread, but it should be the same), it actually turned on in my backpack once. The computer was in the sleeve, and that was zipped up in my backpack. It turned on overnight and shut itself off when it overheated (the hard drive hit 69C, I suppose at 70C it shuts off). The warning label for the keyboard looks like it melted a bit, but the computer still works fine. Also, I reinstalled vista before I sent my computer in (to hp, got the screen replaced), and I never had any problems before, so that could fix it, but that could also cause it too, possibly. And I updated the bios sometime around then, just a bit after the update came out, so that could be the cause too. I emailed hp a bit ago, I'll see what they say.