Right, yeah, that makes sense. Added the following to settings.json:
"alwaysUndecoratedAtFullscreen":true,
So, in your case, you'd want to set it to false. Unfortunately, for now there's not much you can do beyond running at a lower resolution. Like you say, it seems like it's a driver issue, and I'm not sure what else I can really do on my end.
Hmm - after a bit of googling around, quoting from
here:
I think (THINK) the problem might be in your windows video settings. I've experienced the same thing once. It turned out that windows/videodriver settings were conflicting with wow settings. In my case, windows was forcing antialising in fullscreen applications while I turned off this setting in the game because my pc was at the time.. rather mediocre. The setting wasn't turned on for windowed applications, so those were fine.
I can't say for sure this is the solution ofcourse. But it might be something to look into while you wait...
Might not be your exact issue, but possibly worth looking at?