I'm new to CB - so first let me say "hello". Yesterday, when I struck one of my M2K's, it started making a noise similar to an old bell telephone. I had recently rehung the unit, after changing some gobos and picking a new hang position. I am assuming that I knocked something out of whack during the rehang, but would like some more info. I work for a church, and with Easter just around the corner, I'd like to know if this is a quick fix, or one that needs serious repair. thanks.