I have about 15 P64s. One started causing DMX trouble "down stream" from it. It stopped if I took OUT the dmx terminator plug. I took the dmx connector off of the unit and noticed that one of the 4 small screws that hold the two xlr connections in (on the "out" side of the xlr) has bare connections so that the screw touches metal inside the fixture. Further, the trouble with the fixture gets better / worse when you tap the fixture and jiggle the dmx out connector. I THINK I can solve this problem using some bare copper wire and making the connection solid from the screw to the outside of the fixture. Has anyone had this issue? Any advise?