I won't call this an intonation "problem", but I'm curious if this has ever happened to anyone else... The intonation on all the strings is great... except notes on the B string seem to be slightly sharp (using an old Korg pocket tuner). I've got the saddle almost about as far back as she goes. Do you think this is a neck problem? Or maybe it is my tuner? Or a dead string? (2 months old). Any ideas???