Constant Video Crashing

[Novemsol]

Trying to play in either fullscreen or borderless fullscreen ends up w/ either a black screen, or the video ceases updating.  The game is still running, but the video is not updating to show what is happening.  

 

This is on a rather high spec machine & was not a problem I had last time I played before today.

 

Windows 8.1

I7 5960X

32GB DDR4

GTX780

2560x1600 resolution

 

Video driver is 344.11.

 

I normally have my video card OC'd, but I did try dialing the card back to default with no change.  This has happened multiple times & has prevented me from being able to even select a mission.  

 

The game will not even launch properly in fullscreen (no video ever renders) & I have to set it to windowed in the launcher to even be able to get into the game to change the setting to something usable.

 

If anyone has a fix, or if there is anything else that anyone from DE needs to try to diagnose, let me know.