I just installed armageddon about 12 hours ago,but on my less than 1 hour of gameplay,game froze my computer a total of 3 times,which 2 of them was loading and one of them was right in middle of the game.

What happens;
black screen and incredible lag starts on computer.I tried waiting 10-15 min = nothing
I tried Ctrl + Alt + delete > after 5 min the win7 options show up but it lags so much leave it opening task manager,you can barely move mouse around.

Afterall i have to reboot with all my files and everything on,and it wills eriously start damaging my hard drive if it keeps going.

What is wrong?

My system specs
http://i.imgur.com/73zjK.jpg