Hello, I really need your help. I have tried to open arma 2, arma 2 oa, and dayz commander, but NOTHING will load, I just keep getting the same message: "arma 2 has stopped working" with the window trying to find a solution to the problem. I have only had this problem when I re downloaded arma 2 oa as I was getting the error message "bad serial given at setup" So guys, I'm clueless on what to do, please help me out, Thanks, Luke