I'm running Win 7 and have more than min requirements. So, I play for about 10 minutes or so, usually shooting or running, then I freeze, enemies keep shooting and attacking me but I can only stand there until I die. Can't shoot, move or heal. Also sometimes, other pages open up while this is going on, like task manager, internet home page, and I am not hitting nothing except my mouse and keyboard, and know I am not hitting any buttons to make this happen. So, can someone help me and tell me if it's a problem with my computer, which is less than year old, or something in game?