As near as I can tell, Advancemame doesn't play nicely with my hardware (ECS K7VTA3 motherboard, Sempron 2500+, 256MB Ram, Creative Ensoniq (1371) sound card). Tried both a Diamond V550 (TNT) video card and a GF3, same result. (Looking at the frame rate counter, it is seriously impacted whenever the trackball moves, even in non-trackball games. By the way, a standard PS/2 mouse had the same problem, so its not the trackball either).
I installed Windows XP (first with the V550 (crap), then with the GF3). Windows Mame plays flawlessly, rock solid framerates no matter how fast I spin the ball!
I guess the countless hours setting up everything in DOS was for naught, as I think my best choice now is to buy an ArcadeVGA and run XP (not a bad thing except for another $100 into my money pit cabinet, lol

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