Is there an order of things I can have him check to rule out problems? I have never met (face-to-face) this online acquaintance, nor have I seen the guitar in question. I am trying to help him diagnose and fix his problem. He recently bought a Player Series neck from The Stratosphere. Somebody else installed it for him and "set it up." However, as he describes it, it has "much fret buzz, more like a rattle, all the way up the low E, A D and some on that nasty G." The guy who did the install/set-up is of no help, insisting the frets need leveling. My first thought is neck angle -- not seated properly, or debris in the pocket, or a poor shim, or a bad micro-tilt adjustment. Anyway, I seem to be unable to find a published checklist to help me diagnose, but I know some of you are really good at this stuff. Any help you can provide is appreciated.