I have been using this site for the past year since I bought my Asus ROG PG348Q monitor. Its a great monitor and exceeds my expectations every time. It is just so frustrating to run a game for the first time and see those big ass black bars on each side. Right now I am trying to figure out how to play Metal Gear Solid 5 The Phantom Pain in 3440x1440. Ground Zero played without the black bars right out of the box and there was a fix on here that took care of the menu display problems. Phantom pain all the fixes seem to crash.
I think what happened is the Windows Fall Edition update affects those programs somehow. I had that issue with an Assasin's Creed game too. It seems like with every big Windows patch there is a whole new batch of issues that develop. Just tonight there was another windows update, seemed rather large too.
Anyhow, I wish I knew more about programming so I could help the site but will do as much as I can.