I keep experiencing a variant of the battle freezes reported elsewhere. In about 1 out of 3 battles at some point the screen turns green and the game stops. The only way to get out of it is to re-boot the PC. I have tried all of the remedies listed elswhere ( run as admin, turn off UAC, delete rwm files, delete bin files, turn off Anti-virus, update drivers....on and on ad nauseum). My system is had 8 gigs RAM, a 2.3 GHz quad core, Win7 Ultimate 64 bit, lots of empty hard drive and a 2 gig Nvidea GeForce GT 540M GPU. Any clues on how to stop this from happening? It is beginning to make the mod unplayable. I had similar problems on my old XP rig.