Just got the steam version of Arma2 and Arma2 OA today. Regular Arma works fine, but every time I try and launch OA, I get a window that says "failed to contact key server". I tried running steam as administrator, uninstalled and reinstalled OA, and verified the integrity of game cache twice (both times I've done this, it has had to reacquire 1 file). Still nothing. Help please?