I bought the game 2-3 days ago off Steam sale. When I first installed Arma 2, OA and DayZ, everything went fine and I could play. Yesterday when some kind of update came out I started getting this error though. I've since tried reinstalling the game 4 times without any luck. I've tried to fix it using this post as well, no luck: (http://dayzmod.com/forum/index.php?/topic/32290-arma-2-oa-has-stopped-working-crash-to-desktop-fixed/) Today I reinstalled my windows due to different problem and tried to install the game again. Right after Steam had installed the game I launched the game to complete the 2nd step of the install of DayZ: "Steam users: Run the game at least once through the Steam launcher as Administrator". I went to boot camp and launched the last mission but the same crash occured. That's before even installing the DayZ mod. I'm out of ideas now. snapshot of the error attached.