If run diablo 3 on crossover XI while my two screens are running on nvidia twinview, the game will start in a windowed 1024x768 resolution. The option to change Windowed to Fullscreen is masked out, and so is the option to change the resolution.
I was able to get by this problem using the following steps:
- Turn off twinview (fall back to only 1 screen)
- Run the game
- Change settings to Windowed Fullscreen
- Click apply (game will crash)
- Turn back twinview (2 screens back running)
- Run the game
and now the game will start fullscreen in one of the screens with the max resolution of that screen and the other screen is still usable.
The game works perfectly but the above steps are kind of annoying. world of warcraft used to work while twinview is enabled without any problem.