Forza 6 apex crashing

Hi, I have just installed a GTX 1080 card, I had no issues running the game with my 2 x GTX 970`s, since fitting the 1080 the game will load to main screen and then crash back to windows.
Ive done a fresh install of windows 10 and re installed Forza, still the same, I have the latest 1080 drivers
Any ideas

Regards
David

I have been experiencing crashing during start up for the beta. My system is capable of handling the app. I have a 980ti, i7 6700k CPU, and 64GB of RAM. It started recently. Uninstalled and reinstalled and restarted system with no success.

I think I might have fixed this, install the latest beta drivers from the NVidia site, when you go to install select custom, then select the option that says do a clean install
Regards

David