Rift runs like crap on my new 2011 MBP 2.2 8gb with the 6750m at 1920x1200. I'll get maybe 20 FPS on medium settings if I'm lucky. In a dungeon i need to turn down the resolution to 1280 x 800 to get it to be playable. This is on Windows 7 64 bit. I am thinking, as others are too, that the Bootcamp drivers are weak. Sadly the drivers from ATI do not support the 6750m. Wish I had known that before i bought the laptop. Now I'll have to wait for Apple to update Bootcamp which happens once in a blue moon.