Guy, I would take your Sherwood in to have it checked out before you buy a new AVR, or have someone take it in for you. At least be sure there's a problem with it before you spend more on another receiver. You mentioned before that it is only a few months old, so it's got to be under warranty, they'd either fix it or replace it with a new unit.

Half of communication is listening. You can't listen with your mouth.