Thanks guys. I had already played with the settings you mentioned before I started the thread, but did not add any of the games to that "Do not filter" setting. So I had another play with the advanced settings and updated the list, and that didn't work. Then I added "mslug;" to that "Do not filter" setting and updated the list, and it worked. "mslug" is now in the all and neo-geo lists. I'd still prefer to not have to explicitly list every game that gets caught in this seemingly invisible filter. I haven't donated yet as I just got GameEx and am trying to set it up. Are there more settings available once GameEx is unlocked? Also, i'm adding my configuration files (Version 11.72). Could you take a look and tell me if there could be something in the configuration blocking "mslug". The only other games listed under Neo-Geo are King of Fighters 2003 and two listings for SNK vs Capcom - SV-Chaos... GameEx.tar.gz