I am dual booting Win 7, 32 bit, and Win 8, 64 bit. I am trying to play Sims 3 and expansion packs. On the Win 7 side I everything is running great. On the Win 8 side I it's fine with the base game but as soon as I add an expansion pack my graphics will not respond. I can not change graphic settings in the game and when I check the deviceconfig long there is nothing there. The screen in the game has lines flashing through it and the distant picture is all white with no detail in it. My graphics card is GeForce GTX 660 ti. I have 6 GB RAM. I have posted on the game forums but they all say it has to be a Win 8 problem. Thanks for your time.