Overheat either hangs a machine, shuts it down or restart. It
depends on the hardware maker.
I doubt that's the cause. I think it may be due to corruption,
because you shut it down forcefully when Firefox crashed the
machine. As the hard disk is still writing data and power is
suddenly lost, it can cause corruption.
The corruption can be fixed by booting up to Last Known
Good Configuration. Keep on pressing F8 when booting up,
before the Windows logo shows. Then select Last Known Good
Configuration and press Enter. It takes a while for
Windows to repair itself if you are using NTFS. If using FAT32,
might be gone case liao.
hmm. because i have this habit of never offing my computer for
months to years.. and i left my tower on the floor and its not
really airy. i think it might have overheated.
win2000 got this last known good
configuration function?