I have a Toshiba Satellite C655-S5132 laptop (Windows 7).
If I leave it alone for a while and then try to boot it, it fails. The fan turns on and then gradually winds down to a stop. The display doesn't turn on at all. The power LED comes on and stays on. After trying to boot it several times it will eventually boot normally.
If I shut it down and turn it back on without waiting, it boots back up just fine. It's only after leaving it off for 10-20+ minutes that I start to have a problem again.
Does anyone have any ideas?