The video and gif Korrigan posted is exactly the issue I've been having. It is not limited to inside only it will happen outside also.

I have since uninstalled all of my drivers. Restarted in Safe Mode. Ran CCleaner to clean up any left over files. Then rebooted, and re installed my drivers.

Same problem still showing up. It seems to only happen with certain shadows, and not all of them. The shadows that do flicker will consistently do it when looking at them a certain way though.

I am wondering if maybe it is because I am using the newest drivers that just released last week. I will attempt with older drivers if I don't hear anything in a couple days.