Computer crashes when playing starcraft 2

Basically what the title says, my computer will shut down occasionally when I play starcraft two. It isn't every game, but it happens occasionally. Sometimes it'll happen when sc2 is minimized, and I'm not even playing the game. I doubt this has something to do with sc2, I know it's not a virus, so I think it's just that my computer can't deal with the load. Help?

Hi there rlaher, What computer are you using? Not just the brand but the model number, as your hardware might not be up to the requirements for that game. Cheers, Lee