I had a really strange thing happen with my D811S. I was doing a demo of the THX logo on the Episode 1 DVD at REF like I have done many times before. Although this time I forgot to turn up the volume all the way. So when it started I began to turn up the volume to REF level. When the explosion of the ball happened it just hit REF level, but then my receiver went into OVERLOAD and shut off. I checked all the connections and tried it again accept this time I had the volume preset to REF and it worked fine. Anyone have any theories or explanations as to why it happened? Also might this have damaged my receiver and are my speakers at risk of further damage due to a possibly damaged receiver? I have N38 mains N-Center and N24's for surround and back surround. No sub. LFE is redirected to the mains.