Sorry about that. For the Colecovision I was using bluemsx_libretro under Retroarch, the Atari 5200 - atari800_libretro, Intellivision- freeintv_libretro. I have a 2kb bios for the Atari 5200, not sure if it's in the wrong place or what. I have tried the ColEm emulator for Colecovision. That will get me to the startup screen, but I have to go to file tab and then load a rom. A real pain. Thanks for the quick response. If it is a bios issue please advise.