Bruce,

On My 970 I have to hit the Input(or Surround Mode) on the front panel then hit the Up or Down arrow to scroll through the options. I just tested it with the surround button. When you hit the surround button the display does nothing. Try hitting the surround button and then hit the up (or Down) button.

Good Luck,

Charlie
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Charlie,
Outlaw 970, B&K AV5000, Paradigm Ref 20 and CC (V1), Martin Logan Dynamo, Sony 42" RPTV, Toshiba HD-A1