I first purchased ARMA 2 to play the mod DAYZ. At first arma 2 and OA ran great (other than in dayz which I assume is something to do with the mod). Then it got this weird lag where even the menu lagged quite a bit, and I got just unplayable frames. This was the same for both arma 2 and oa. I uninstalled dayz, nothing. I then reinstalled my drivers, nothing. Finally i reinstalled both arma 2 and oa, which took forever. It seemed to fix it and everything was fine again. Now it is doing it again and I really don't want to spend another 2 hours re downloading them just so they can fail again. Graphics card: nvidia geforce gtx 550 ti. CPU: AMD Athlon II Quad core 3 ghz. RAM: 6 GB DDR3 667mhz. Any help would be welcome. Thank you.