There is no way you are getting your money back. You are being made aware of bugs and problems when you buy the game and when you start the game. I seriously doubt that the game has fried your computer. Its just an unlucky coincidence, your computer was probably on the verge of breaking already.
Anyway, here is a way to fix the problem: http://www.youtube.com/watch?v=eKH0dGX4KeA - Try Googling the problem yourself next time.