For some reason, when I try to launch Pac-Man, Burger Time, Galaga, and probably others that I haven't found yet (are these all using Midway hardware?) from the list in mGalaxy, they don't launch. It's like it doesn't even register me hitting the launch button. Other games, like Donkey Kong, launch just fine. If I try to run the problematic games directly through Mame at the command line, they launch and play without issue. Any ideas?