I've got same problem as topic starter. I have Lenovo Y700 laptop with gtx960m card and Intel Hd graphics 530 as onboard card.
Once game started i see only black screen which starts glitching with colours after ~1min. I can hear soundtrack and menu click but screen either black or full of color distortion.
I've tried -nobenchmark option - no help for me. But when in NVIDIA control panel i switched device from GTX960M to Intel HD 530 game started fine, obviously it is terribly slow :)
I have tested game on GTX960 with driver version installed by default, same as i have updated to latest version and sympthoms are same.
Guys appreciate any help here.