Hi everyone
I just wanted to say that after patching Arma2: OA to patch 1.55 I lost few fps and got similar problems to some of you.
After about 10-15min minutes of gameplay the game become dramaticly loosing fps, models are becoming verry low datailed and everything freezed, (only after I use ALT+TAB ) and go back to the game everythink is back to normal ..for some time,
I didn't have any problems like that with 1.54 patch