It appears that ever since Nvidia has went all fancy with the Nvidia Experience nonsense, there have been issues. If you are experiencing these things listed below, I recommend uninstalling your latest driver and go with an older version. Your mouse cursor disappears frequently and or changes colors Your computer freezes on and off for about 5-10 seconds each You have to hard reboot your PC due to freezing (This never happened to me until I updated my drivers to 320.[x]) I went looking into it today and discovered several others having the same issues. So I uninstalled my graphics driver and went with 314.22, (Older driver) And my problems have ceased. (This is also a reason I've been inactive lately)
I am using the NVIDIA GeForce GTX 660 Ti, and hadnt any issues with games and whilst using Nvidia Experience ^^ Are you maybe using an old series?
I'm running a 560. Not sure if it's just happening with random systems, cards, or what. But what I do know is that it was in fact the driver I was using. It was one of the July drivers, not 100% which one. (Edit: I had the latest driver for a good while before this started. Maybe it got corrupted somehow, not sure. All I know is that I won't be using the latest drivers for a while.)