You see one of the reasons I'm going to HT is because I have a Xbox and I want to enjoy the surround sound features. But all Xbox games are encoded in Dolby Digital 5.1 and how will that work with a receiver that is built for 6.1? Will the 6th speaker in the 6.1 be idle, or will it use the 6th speaker even though it is only DD 5.1?

Thinks for the help,

Chris