> > try running MAME with these options off: > > > > waitvsync 0 > > syncrefresh 0 > > triplebuffer 0 > > Thanks, but no luck. Looks like those are already all 0 (defaults). I'm wondering if > something changed in terms of DirectX or video driver requirements?
I did notice that a recent NVIDIA driver release seemed to screw with MAME framerates on a GeForce 6200. I don't recall the revision, but I had to roll back to an older one for a while to get 100% framerates on games like Pacman. The very latest release seemed to fix the problem. Maybe that's what you're seeing?