My arma working perfectly with Vista 64 bit, 4 Gb ram, 8800 gtx and with all newest drivers in...but not with 1.08 or 1.09 beta. Its works only 1.04 version.
When i tried take 1 Gb ram off it didn´t work for me. I tried reinstall game without patching it and..Wow!...its working without any problem. But of course I cant join any Multiplayer game.
So what Bis "fix" with patches it broke game with 64 vista and 4gb ram?