I have a problem with my hackintosh (AMD Athlon based system). I have a GTX 960 Strix and I successfully installed Yosemite on my computer, but when I install the Nvidia Web Drivers and that I reboot, I see the error "A graphics problem has been detected". If I click Ignore, I can't click on anything and the message reappear around 5 seconds later. If I boot in safe mode, my screens (One connected by DVI and the other by HDMI) just turn off. For information, if I start my computer with nv_disable=1, the screen is not scaled correctly and it is very laggy and I am running Mac OS X 10.10.1 (Niresh version). Any help would be appreciated.