My Humax is not playing sound on SD channels. It works fine on HD. This is the same for recorded programs, SD nothing (although the sound worked fine when they were recorded), HD is fine. The setup is as follows: - Humax HDR-Fox T2 -> HDMI -> Oknyo txnr-509 -> HDMI -> 46" Samsung 7000 series (late last year high end 3D model) I assume it's the Humax problem rather than the Oknyo. I've tried a hard reset on the Humax without success. Any suggestions or solutions?