Well, finally today I fixed everything up. I ended up changing to a diferent mame version uifx0.159 audited roms, and set LB with that default emulator. And it worked! FInally, I was so depressed not being able to run my Arcade with bigbox, and it makes such huge diference! Thank you so much brad and lordmonkus fot your valuable help. Many blessings, here my Arcade