Anyone had optical port problems with their Onkyo 805?

[prstrings]

I bought a refurb. 805 three weeks ago, got it two weeks ago, and over the last couple of days I have been having trouble with my optical audio from my HD receiver. I finally messed around with it last night, and found out that both of the back optical inputs were dead (at least the first input was working for two weeks). The optical input in the front of the unit ("AUX 2") works just fine.

Has anyone had this happen to them or heard of this problem? :confused:

Should I call Accessories4less (bought it from them; authorized dealer) or Onkyo about this?

Thanks.