Hello, thanks for the msg.
I don't think it's a video driver issue. The same game runs perfect in Retroarch only and in fullscreen. Games from other systems runs well in Retroarch only in fullscreen too. Retroarch works fine with Rocketlauncher too. And even Launchbox works ok if in window mode.
By the way, I'm using Retroarch bezels.
Today, I decided to test it again, and I don't know why, it worked! I did nothing. Maybe it's an update from Windows 10 that was causing some trouble.