I like to play a lot of DOS games, and I recently switched to Windows 7(had the same problem in Vista, mind you), and on Vista, I eventually solved the problem over a long, long course of trial and error, so all the progress was lost upon the switch. If I start in the DOS screen in fullscreen, then I can get the games to keep from inverting the colors, but if I ever go windowed or start off windowed, and switch to fullscreen during gameplay, the colors invert. Help, please?