The machine running mame has the 6570 and it has 2 gigs graphics memory ddr3. The games are running at 100% and so is galaga as F11 will display that information on the black screen. The resolution is 1600x1200. Trying 800x600 .. no difference. Video Driver 8.92 and also tried 8.84. Is there anyone here with Win7 Pro x64 with LCD and amd graphics that can try galaga and see if it blanks out after the white grid? I run groovymame but it doesn't matter because when I switch back to regular mame it still has the problem.