I'm sort of at my wits end here and could use some help. I've been playing guitars for a long time, but a wicked gremlin has reared it's ugly head on a couple of my favorite guitars lately and it's driving me a little bit batty. One or more of the unwound strings are, rattling, or buzzing, but I can't physically see the string buzzing off of a fret, string height and clearance looks good. I even raised one saddle dramatically just to see if it would go away and it didn't. I thought maybe it was just an old string, so I changed one, no dice. I wondered if it might be a ball end rattling, but I really don't think that's it either. It's happening on a strat with a floating bridge and also on a tele. I can hear it when playing them acoustically or plugged in. The string just doesn't ring true, it sounds like it's rattling off of a fret, sounds like fret buzz, but holding the guitar sideways against a white background so I can clearly see the action while fretting on the 9th fret, I cannot physically see the string hitting a fret higher up the neck. It looks like there's plenty of clearance, but I'm still hearing a buzz. Is it hitting a fret and I just can't see it? That's why I raised one saddle so high just to see, but it made no difference. Any of you gurus got a clue what might be causing this? Thanks for your help!