Hello everybody! I've just bought Ibanez BTB 405QM with probably D'addario strings (I think that it should be with Elixir's but anyway) and after about week I've noticed that E string hasn't sustain, it sounds for about 1 sec. and dies (it's very attenuate) it's even worse when I play from 10th fret and above, it definitely has strange sound on 12th fret. I hope that isn't a construction problem, because action is high enough in every position I play. I think that B string sounds not right too, but a lot better. Thank you for any advice.