I put a new set of strings on yesterday and I'm wondering whether I've got a dead B string, whatever 'dead' means in this context. All the other strings are ringing clear but all I get from the B is thud. The tuner tells me intonation is correct but my ears hear something different. I've uninstalled and reinstalled and checked for twisting etc but I'll double check. And I've gone for a slightly higher gauge than before, and tapered, but done a full set-up. Have I just got a bad string?