I bought call of duty world at war and it would not work. Then when i got it to start many of the maps wouldn't load and i had to run in lowest res even though i could run cod4 maxed out max res (1600x1200 20 in moniter). I fixed this by going from latest 180.48 graphics driver to the 175.15 This fixed my codwaw problem but now i got assassins creed (after i rolled back my driver) and near the beginning (after you meet the master) when i am running to save the villagers i got to where you have your first real fight and it froze. So i cntrl alt delteted and ended process and tried again and then it freezes when i run through the archway past the villagers who are wounded but before the fight and there is a cut scene where some guy tells you to go distract the bad guys and it freezes there now and every time i try it freezes at that same spot. The sound works for a few seconds after the freeze and continues to work but the guys voice cuts out but i can still hear white noise like raindrops footsteps and image stays on screen and now i cant seem to control alt delete. what can i do besides updating grapihcs driver i meet system requirements pls help