I'm new to the site. I have a Jerry Donahue tele, and this year it developed a high harmonic ring on the G string. No other string has the problem. Pickups are fine. Changing strings makes no difference. It can be heard in a quiet room without an amp. When recording the Tele it's very noticable. It appears as an after tone, not when the string is initially struck. The string doesn't buzz anywhere. General string tone is fine. Adjustment at the bridge appears fine. Anybody ever had this issue? Anybody have an idea how to fix this? No obvious source of the harmonic is evident. Thanks.