Hi!
I encountered a problem and I think it could be a Windows thing.
It happens on 1.8.1 (unmodded) and 1.7.3 (modded). Also in fullscreen and windowed mode.
OpenGL: After startup, the main menu starts flickering and after a short while I have a black screen.
DX11: The settings menu is not accessible because of the same behaviour.
There is no specific entry in the KSP log file or the Windows event viewer.
First i thought: Ok, bye graphics card. But it is KSP only. I reinstalled the game, I reinstalled my graphics driver...no change! The only prior change to my system was an Windows update. Anyone else with this problem? Is there a workaround?