John,

Did you find a solution to this problem other than setting the ROKU to 'Stereo' output (thus losing the 5.1). When presented with a Dolby Digital Plus signal my system produces a loud 'fart' followed by silence.

Stuart

861v6, HD621, DSP5200, DSP5500HC, DSP33, ROKU3, Transporter, VP50Pro, Pioneer 6010, Pronto TSU/RFX9600.