Like a lot of people I tend to use NV INspector's AA settings which appear to generally be more optimised and give better results than the built in ones. Today I replaced my long suffering GTX660 with a shiny new GTX970. After installing the driver I of course immediately fired up my driving sims. Imagine my disappointment when GSC booted to a black screen with the menu music! I'd seen reports of that GSC/970 behaviour in threads on RD, many of which suggested DDU or similar to remove and replace the driver. Before I went that far though I thought I'd just revert NV Inspector to defaults for GSC, and sure enough the game fired up perfectly. After a bit of experimenting I tracked the issue down to the type of antialiasing in NV Inspector: I was using 8xQ, and it seems that any of the AA settings with a Q in them don't work. Switching to 8xS worked perfectly, and with 8xS, 2xSGSS and FXAA the game looks beautiful and runs rock solid at 1080p 60fps (apart from those annoying occasional microstutters on certain tracks). Hopefully this might help any of you who may be experiencing black screens after upgrading to a GTX970. The problem is not game specific, any games for which I was using Q AA were affected.