Like already reported, FXAA to ON, black screen. HDR ON, outside monitors go blank. GTX 590 5760x1080
Update 60, FXAA on and HDR, ATI 5870 at 6020 x 1080 both outside monitors not working. HDR looked nice on multiplayer on middle monitor but tried on single player and HDR was like sitting on the sun. both MP and SP modes outside monitors not working. Then tried turning FXAA off and still no outside monitors with HDR on.