When i activate FXAA thru nvidia control panel the game flickers between FXAA on and FXAA off. On dx10 it works fine, also if i disable ingame AA it no longer flickers on dx9, i need ingame AA because it's better than nvidia cpanel AA and i cant use dx10 because it lags badly. When i start the game and move on the map a bit it stabilizes to FXAA on. If i Alt+Tab out of the game, the flicker shows up again. I play Blitzkrieg mod for Company of heroes and to find enough players for a match there it takes time and i need to Alt+Tab to do other **** on the pc while the game fills up, it happens on the unmodded version of CoH too so it's not the mod. The card is gtx 970, on my old gtx 550 it worked fine without any flicker. This is important for me because FXAA makes the game look 10 times better. Any help greatly appreciated. I would offer money for a fix but its not allowed.