Hello,
I recently purchased an Onkyo HT-S5300 receiver and associated speakers. The system is a 7.1 home theatre in a box. I set up the speakers relatively easily but I can't seem to get the back 2 speakers (back surr) to produce anything...static...noise...anything. I know that those 2 speakers make the system a 7.1 and without them it is only a 5.1 setup. In saying that, the display reading on the receiver shows it to be in Dolby digital 5.1 format. How can I change it to 7.1 so that those back 2 speakers are used. During movie watching, I change the listening mode to the PL II as it produces the best sound.
I have tried googling and everything short of calling Onkyo but it seems that Google only wants to sell me an Onkyo and doesn't want to answer my question

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Anybody know if there is a button I am missing or something that would switch this to a 7.1 system? I should mention that on the first night the 2 speakers did work and I must have pressed something to change it to 5.1 while messing with the buttons. Onkyo has the worst instruction booklets.
Thanks for any help in advance.