I'm playing mkv files from the DNS-323 to a Popcorn Hour A-110 using UPnP AV server on the 323, but some mkv files don't show up on the PCH when browsing the 323, but the same files on a computer running myihome do show up on the PCH and play fine. Would this be a 323 issue? I'm running 1.08b5 fw.