Hi, I received my 3802 from 6th. ave. yesterday ... hooked it up today. When should the dolby digital indicator or dts indicator light up? Also, I hooked up another set of speakers to the surr.back/multizone. I then selected multi on the power amp assignment set-up. When I choose 6.1 surround the receiver tells me that there are no rear speakers recognized. It however recognizes rear speakers if I choose surrond on the amp assignment. Is this correct?