Sorry to necro an old thread, but has anyone had any luck with this? I'm having the same isse, the screen is flickering black on all three games of the Warchest, no matter what settings I change. I get the flicker both in the menu and during gameplay, the menu does flicker less though. Istalling latest graphics drivers did not help, nor did copying opengl dlls into the game directory. I am running Windows 10. Any ideas?
I had the very same problem on my laptop, which has an NVIDIA 940M and an Intel video adapter integrated in the chipset.
It turned out that the game was using the integrated video chip, which is unsupported by the game, rather than the NVIDIA one.
To fix the problem, open the NVIDIA Control Panel and manually set the game (mohaa.exe) to use the NVIDIA processor.