Setting up my new Onkyo TX-SR701. Very simple config. so far, just front left and right speakers and nothing else attached. However, when i go into speaker configuration under the setup function, the second choice (according to the manual) should be Front L/R and it does not appear. scrolls right from subwoofer to center. Thus, i am unable to get any sound from the unit, which was simply going to be fm radio to start.