Hey guys! I have installed Windows 7 on Macbook Air, drivers and everything are up to date. Seems like everything is working like it should except Intel HD 4000. In the game Total War Shogun 2 it shows that iGPU is using only 243Mb instead of 512Mb (I have upgraded RAM in MBA). I have checked Intel GPU driver, eveything is set to "Performance". Please help. Thanks!