I've been working on my 2mo Tele Ultra and finally gave it the fret levelling and crowning treatment yesterday. I'm sure I'm not the only one here indebted to @Ronkirn for de-mystifying the process. Thanks Ron! In the process of levelling and adjusting, I've been spending more time adjusting and fine-tuning the truss rod and had to confront a problem that has been there for a while but I could ignore after the initial set-up. The truss rod doesn't turn normally - instead I have to load up some tension which seems to twist the rod rather than spin the bolt. Adding a bit more tension finally turns the bolt in a jerky, noisy way. It sounds like a door hinge that is completely seized up and only opens slowly in jerky, sudden motions. It has made fine adjustments of the truss rod impossible. The problem is the same with, and without string tension and the squeaking is the same tightening and releasing the bolt. I've also untightened completely to make sure the bolt isn't jammed or cross-threaded somewhere. The rod does its job in adjusting relief but needs a bit of force which I want to avoid. As the guitar is new (and already replaced under warranty), does anyone have other suggestions?