Well this is an issue with a WiiMC codec then. I was told yesterday a recently discovered issue with .flv files causes them to not playback correctly. I am assuming you are talking about this. REMEMBER, Navi-X DOES NOT host video files, just links to them on the internet. If something is not working correctly during playback, this issue has something to do with the codecs or how WiiMC plays back content. All content in Navi-X works fine via a browser or Navi-X on Windows, Mac, Linux, AppleTV, and Original Xbox as well and everything plays fine there. Need proof?! Check the Navi-X Simulator at http://navix.turner3d.net for evidence.
I don’t know what the procedure for reporting playback errors is, but if someone from Team WiiMC wants to chime in, be my guest.
iRoNBiLL