Hey Everyone, Not sure if there is anyone around on this thread but I too need some help setting up LaunchBox to play my Mame games. I have downloaded a full romset of 2003 plus. I am trying to use RetroArch and downloaded the core and it looks very similar to the ones up top. I am able to run the game through retroarch. That isn't the problem but when I click on the game that I can confirm working with the right core in retroarch, nothing happens within launchbox. it doesn't try and open the game or bring me to retroarch just nothing happens.
Like I said, I have confirmed in retroarch that the core 2003 plus runs the game that is from my 2003 plus romset, but for whatever reason I am missing something from launchbox to retroarch i feel like. Maybe I am way off but that is where I feel something is missing.