I did try it with command line powermame and no dice. The only other possibility I can think of is that in Johnny5 for it to work, the mame.exe has to be named mame.exe. I tried using pmame.exe in the J5 setup, but, again, I still think it was a problem with powermame. Could it be that the way powermame is reassembled has something to do with it? I know that the way MikeQ compiled it caused the NeoGeo games to have a calender error. Someone else recompiled it a different way and now they work. The only problem is that the recompiled way is with Pmame32. No big loss, except with J5.