Have you tried just resetting your receiver back to default settings, and starting over. On page 64 is the instructions for the 2105 in the manual. Of course, you will be starting over, but it sounds like you really have it messed up
1. Turn main power off on receiver (not remote)
2) Hold the SPEAKER A and B button down at the same time, and turn the power button back on.
3) Continue to hold the buttons until the display starts flashing, then you can let go. The receiver will be reset like the day you took it out of the box.
