I just upgraded my AVR300 from 2.84 to 2.90 . The upgrade went without a hitch (1.12 DSP first, followed by the 2.90 software) . The instructions are fine. However, when the receiver was up again I noticed all the setup settings had returned to defaults and I had to enter them again - speaker types, distances, levels etc. Is this normal? I would have hoped settings would be preserved across releases under most circumstances, unless the code change involves a major change in the way settings are held.