I'm trying to get a HTPC to bitsream to my VSX-1120. The Windows 8 AMD ATI HDMI audio driver isn't working, so I'm trying S/PDIF (optical). I'm getting DD5.1 and DTS to work, but not TrueHD or DTS-HD MA. I've read that other Pioneer receivers needed these signals to go over HDMI, but I don't see that in the VSX-1120 manual. Can anyone confirm whether TrueHD or DTS-HD MA works over S/PDIF to the VSX-1120? Thanks.