Triple buffer is no good.I have triplebuffer off,vsync off,but i have prescale set at 2,that will smooth out the rough edges on some games.I dont use a CL,I just have these options set in my mame ini Is your direct x up to date? also in your ini,make sure you are using direct 3d version 9,not 8 That kinda sounds like a video card problem.the wind is blowing,so maybe there is a video card driver problem.good ol ATI!