Ah, great, it worked for me too.
changed the config file as stated and used the -window command in the shortcut. Have flown all evening without the pc crashing on me.
i myself though... crashed a lot, nice game!
Same here, same problem.
Its every time I play TOH, after some time pc freezes.
I have a GT8800, WIN7, 8 Gb Duocore 2,4 GHz
Tried default settings, lowering resolution, unplugged all controllers, but it doesn't help.
no fun this way.