I got the same problem over and over again. The game runs without any bugs or glitches until i get into a fight with a dragon

Everythign works fine here, as well. But when the dragon lands und starts to use his fire/ice/whatever breath, my pc crashes. Everythin. Complete shutdown in 0,001 secs.
Drivers are all up to date and my hardware-temperature is normal while playing Skyrim. So nothing unusual here.
Any1 got the same problem and/or a fix for that? It's kinda annoying when you have to avoid every dragon :/