What the hell 'ya doing messing with the 950 when it's a beautiful day in SoCal and you have those Nortons calling you from the garage???

By 7 stereo, do you mean the synthesized 7 channel from a 2 channel stereo source? Do you get the test pink noise in all your speakers? You should get something from the rear (I'm assuming you have 7.1 with two side surrounds and two seperate back surrounds) in the Dolby EX mode. Try playing the helicopter-flying-into-building-and-crash-burn scene from "Matrix" as it has a lot of back surround, even though it's not specifically EX encoded. Also "Gladiator" has some good back surround stuff during the scene when Russel Crowe dreams that he is dying, just before he wakes up in the wagon. Also, try setting the bitstream preference in the 950 for "auto", and see if that helps.

No, forget all I said - STRAP THAT BIKE ON AND RIDE!!!!