I have an Radeon 7000 64MB video card and it plays 90% of the games very well. I have really choppy game play in games like NFL Blitz, Virtual_____(insert name), and most games that look 3Dish. The sound is choppy as well. Is there settings in Mame that can be adjusted to play these correctly? Or is that my video card needs to be updated? I am running MAME in 1024x768, would changing it down to 800x600 help?