Ya 19.1 and 19.2 just broke my world of Warcraft game, also seeing that I never told you guys about this and guess I should now but my 4k 43' in full screen mode on world of Warcraft the screen flickers any time that you move the camera (FULL SCREEN MODE) the only way I got it to stop the flicker was to put it in (WINDOWS MODE), this is a huge problem,, the monitor I have is ACER 43' 4k, playing World of Warcraft the monitor flickers like it goes to a solid white/black screen any time you go to move, I guess I should record this for you guys,, but also 19.1 and 19.2 broke world of Warcraft game