Video Asylum

I've had this receiver for ~2 months and I love it. I was able to do the initial setup and get the bass manager set where I want. I re-set it a couple of times later. The last time I went to adjust the bass manager, and speaker level, the receiver would not put out any tone in either mode and would go the the set icon. The receiver test tones work fine for the other five speakers, just not for the sub and not in the bass manager test tone. The sub works fine and the bass appears to be pulled from the fronts to the sub at the appropriate frequencies. I would just like to be able to do the adjustments.
Jon