This is odd... on my MIM J's D-string (and only on that string), frets 18 and 19 give the same note, namely the one that's supposed to ring from the 19th fret alone. I suppose the 18th fret is too low for the D, but how could this come up so quickly? I rarely play so high up the neck, so I don't think it could have been worn out in three years. Have I had this problem since I bought the bass, without noticing? I had an acoustic guitar acting this way, but it was consistent; this problem was addressed to all its strings. And it cost me 1/12 of what the bass cost me... Looks like I now have two reasons to leave this bass at home; the fret and the dead bridge pickup. Damn this cheap crap!