ive installed Snes9x on my Xecuter 3, Avaluanch box, and when ever i try to play a rom, i get a (unusable signal) and can only hear sound, i would venture my guess to be that it has something to do with the resolution, but im just fishing for something, any help here would be great as i really enjoy some old school games, like bomber man, super metroid, mario, and zelda, of course... 