So I'm messing around with Arcade OSD outside of MAME, and what I want to do is create a desktop video mode in arcade OSD of 640 x 480 with a refresh of 59.17. I've tried using VMMaker and edit mode in OSD, but I can't seem to be able to create a custom video mode with the refresh of 59.17. I get the feeling this is completely possible, but I don't seem to be able to figure out the steps. Could someone help me out?
Cheers!