Thanks. I used the next option in the list for "Output" -- which was "Overlay"-- and it worked. I ran the game, a favorite old version of MahJongg, and it worked perfectly in all of it's VGA glory, and I won. -Joe

I have a related problem, using DOSbox-.74 in Windows 7, 64 bit. When I first used the program, I got the drive and folder mounted properly and the file ran on a small screen. I used alt enter to go full screen, and it was great. But after a few times, I started getting the full screen, but the …