System Not Allowing NVIDIA Web Drivers

[ArcPlay]

I recently updated my Hackintosh to 10.10.1 so I could add some drivers, but when I updated, my system no longer lets me install NVIDIA Web Drivers, which I need for my GTX 980. Does anyone know how to fix this problem or do I need to reinstall Yosemite from scratch?

Thanks.

 

[michust]

Try newest web driver and do not use MacPro 6.1 as settings.
NVIDIA does not allow an installation on a MacPro 6.1 (for the very good reason, that a NVIDIA is not possible on a MacPro 6.1)