when using the mamewah res tool, did you delete the resolutions that show up poorly or not all out of the arcadevga resolution list? Once i did this and hit auto-select, then generate ini, I was good to go. I used 640x480 for the desktop and mamewah and used the resolution tool for all the games--took some tweaking but finally got it. if i could access my cab easily i would send it along--maybe I should clean the basement..