Posted by Andy Geez on 9, 2000 at 6:25 PM:
In Reply to: Arcade Monitor and vector games posted by dhansen on 9, 2000 at 3:46 PM:
Yep its because the monitor is running in 31.5khz, you see normally arcade monitors are 15.75khz, and basically the scan rate you are getting is 31.5khz, reason for the two narrow images is because the monitor is doing twice the work, and hence doing 2 pictures instead of one.
Force AdvanceMAME to use a different resolution than 640x480 VESA/SVGA.
Personally I think vector games look awful on 15.75khz monitors, they are the only game type that actually look better on a high res pc monitor (more like actual xy monitors).