Color issues on some games

[jub3i]

I just recently finished my project and so I'm working out some of the kinks.  I adjusted the contrast and color knobs to get it right but not all games seem to display properly.  I noticed that it seems to be all Neo Geo games that have the wrong colors for everything.  I wasn't sure if this was a standard problem with a known fix for Neo Geo games, or if it could be anything.

I'm just looking for some suggestions on what to do.  I've been trying to build this cabinet for over a year, but its all new to me since I just recently got it up and running .

[jub3i]

I'm not sure if it helps but I'm running WindowsXP, MAME .95 and I beleive the most recent version of MAMEWAH.  I have an ArcadeVGA card hooked up to a monitor from an old Captain America cabinet.  I ran a diagnostic cartridge that I read to try from the FAQ and all the colors appear to be correct.

[jub3i]

Also, in Mamewah the title screenshot looks fine. All the colors look correct.  It isn't until I start the game that the are wrong.  Anybody have any suggestions?  Would changing the resolution have any effect?