Using 8b9 and I found the correct roms for mame4all and they work great. But the Atari 2600's just give me a black screen and I can esc back to the menu. Also the NES just goes back to the menu. I dumped the roms in via the menu. I also confirmed the roms worked via emulators on my laptop. So at a lose if anyone has seen this issue.
Same here no search results. I tried RetroPie last night, all worked right out of the box. Atari2600, Mame and NES. Just need to fix the second set of controls with the ipac. I tried them first a year ago or so too cloogy, then PiPlay got better now back to RetroPie.