Bringing this back from the dead.
I had them come out to see if it was the Light Tunnel issue, which they deemed it was not. I figured as much but figured I'd at least try. His best guess was that it was something causing the light to refract in the internals somewhere. He said he could tear it down for around $200, but that doesn't guarantee he'd find anything or be able to repair it, so I haven't gone that route yet. He said it could be on the bulb/lens itself, or once you take that out, there's "a piece of glass" right behind that it could be on. I pulled the bulb, it had some dust inside of it, even a larger speck. I got that out and it didn't help. Again, didn't figure it would, but worth a shot. I'm not sure what the piece of glass is that he's talking about. The bulb is facing to the left, and I used a mirror to look at what is in front of it and don't see anything on the small lens or whatever it is I can see. I completely misunderstood what the inside of one of these looked like when I orginally posted. It looked like something just inside the screen was coming loose, but after removing one of the "port hole" plastic covers on the side, I can see that's not the case. Any suggestions on something that isn't too deep into the set that it could be?