When switching on the desktop via tab+alt buttons, it happens, that I can not return to the game properly. When I try, the sound resumes but the monitor stays black and my monitor says "input not supported" - what usualy happens when there is an issue with the video refreshing frequency. I can´t do nothing (because I can´t see what I am clicking on...)

When I restart the game (have to end it via "close this task" from windows task manager though...) just once, it never starts properly, the same issue like discripted stays: sound but no screen. When I restart it SEVERAL times (three times as I remember), it starts without problems.

The issue happens too, when I choose the "autodetect"-button in the video options of the game.

I found out, that it does NOT happen, when I choose "fullscreen window" as display mode in the video options! When I choose this, I can change to desktop whenever I want, without causing the game to conflict with my monitor.