Dark side

I've set up BigBox as shown here: And scrolling through games, it look amazing. My problem is that upon hitting the start button, the game shifts to my marquee screen and the main screen is now my marquee. Every single game that I've tested since enabling the marquee does this. I've swapped cables to new ports and changed the screen identities and nothing helps. EDIT: So I think I figured out part of the problem. Mame loads to the Marquee screen. Working that problem now. EDIT 2: Within Bigbox, the Marquee works well, however changing the Numscreen in Mame.ini doesn't change the output screen while playing the game.