Hey everyone. I appear to be having the same issue Wheeler was having, but I can't seem to get mine working in LB and for some reason, Retroarch is definitely out of the question. I've downloaded the rom set 0.188 for both split and merged. When I tried setting everything up with the split roms and trying to use retroarch, my screen would open a window stating Initializing, but then crash about as fast as it opened. All cores I tried did the exact same thing. I tried: mame_libretro.dll, mame2014, mame2010 and mame2000. I've downloaded the most recent version of MAMEUI64. If I use the merged roms, I can get them to work in MAMEUI64, but as soon as I try to open them in LB, I'm getting a similar screen to what Wheeler was getting. I've gone through this post twice now, but I can't seem to figure out what to do...possibly because my frustration level is up. Any help would be greatly appreciated...especially the MAME for Dummies version about now. Thanks.