I'd guess she cooked the HD, but am not sure enough to just go and buy a new HD, and possibly a new copy of XP, since I'm not sure if her disc set includes a full copy or just a recovery disc. Replacing the drive plus XP looks like $150 or more. It is not a young computer.... but is is a tablet with a stylus touchscreen and she likes it.
Is there a physical thermal safety that would have shut it down? Or other form of protection that I can replace? Or is there a more likely failure like the CPU or something?