I bought a Geforce 210 and upgraded to Windows 7 in the same day. Now Hegemony doesn't work for me. It comes up with a black screen and a white square in the middle. After a while, I can here the sound of the game, but the same picture.(black screen, white square) At first it was saying that I had a missing DLL file, but I got the .dll file, and here I am now. Hope some one can help.