I agree it sounds like a high fret. What I would do is:
1) Check for high fret using a straight-edge tool.
2) If there's a high fret, have a tech correct it.
3) If no high fret, re-do the setup. (See stickies at the top of this forum.)
"The best way to tell a lie is to tell the right amount of the truth, and then shut up." Robert A. Heinlein