I bought an Epiphone Casino in July, and after just a week, it developed a rattle and an intermittent pop. I had a special warranty from Guitar Center, so they sent it to Gibson in Nashville for repairs. It was fixed and returned after three weeks, but the rattle came back. I understand hollow body guitars can be fragile, but should a new one have such issues? Gibson said it was a loose pickup. Could it be the same problem again? I'm new to this and don't know much about the inside of a P90 pickup. Does anyone have similar experiences?