Running ML 10.8.1, Graphics Enabler = no and with the Nvidia-drivers installed, everything seems to be working with my new MSI GTX 660 Twin Frozer, http://www.amazon.com/MSI-N660-TF-2GD5-OC/dp/B0094CX8QI/ref=sr_1_2?ie=UTF8&qid=1348593723&sr=8-2&keywords=msi+gtx+660,
Althou performance is...