Hi, I'm trying to use a Konami Justifier on my Sega to play Lethal Enforcers. The gun isn't working right; when I shoot it, the screen flashes, but no shots register. Any idea what the problem could be? I'm playing it on the original sega console, not a nomad or 32x or anything. Was there a certain sega model that didn't work well with this gun? Let me know what you guys think. Thanks.