Having issue were Far Cry 3 freezes after just 10 to 15 minutes of Play. My specs are Windows 7 64bit, ATI Radeon XFX HD 7970 Black edition X2 Crossfired. 32 Gb Ram, 1600 Watt PSU, AMD FX8150 at 3.6ghz All my drivers are up to date. I have tried to dump it down to lower settings still does it. Even tried to use just one card Any ideas