Thanks Draco. Took your advice and downloaded the latest version, got MAME working outside of GameEx and checked my paths were all correct and now it launches just fine. I am missing many of my MAME roms in GameEx when compared with the list I have within MAME. I have tried made sure only working was unticked and not to verify roms when scanning but it is still missing a few. Also I have Model 2 emulator installed and have told game ex to use it and have checked the path is correct. When launching a Model2 title I hear the sudio but only get a black screen, I have to Esc to get back to GameEx. Model2 runs the game fine when launched on its own.