I installed an Arcam AVR300 along with Meadowlark Shearwater HRs, Petral center, and Viero surrounds, along with an SVS sub for a friend. Everything is working perfectly, except there is no sub/LFE output when playing a stereo source through Dolby Pro Logic II/IIx mode. The sub works fine in all other stereo modes including Stereo PCM, DTS Neo:6 music and cinema, etc. It also works perfectly in DD and dts 5.1 digital modes. Just no sub with the DPL II/IIx modes. The Arcam is set to Cross over - 80hz Large + Sub dts LFE Gain- 0db normal Sub Stereo - 0 db DVD-A Sub Level - 0 db normal Any ideas?