I've intonated my new Tele , but I can't get the G in total intonation. It's in tune as open. It's in tune on the 12th fret, but when I go to hit an A (2nd fret) it sounds all funky. I've adjusted the action & it's good. I've adjusted the (3-brass) saddle & it just won't Intonate until I get to the 12th fret. What to Do?