Snes definitely works, i use the bsnes balanced core personally, NeoGeo could be several issues, just cause you have the neogeo.zip bios doesnt mean that you are not still missing files, thats how neogeo and Arcade games in general tend to work, if its not from a Non-Merged set you may be missing required files. Also what is your naming scheme for those systems? You use NeoGeo and SNES in your post, is that how your platforms are named? If so thats also likely the problem, you would need the default system names that Launchbox offers you when importing systems, Launchbox needs the correct name in order to know which emulator/cores to offer you to run the games.