troutster1,

I'm sorry to hear that you're having this issue. If the video and audio codecs are supported as listed in the manual, then the file should be playing correctly. If no, it may need to be re-encoded to fit the specifications listed in the model.

Unfortunately, I don't have any further suggestions, except maybe trying a different server like Tversity or Twonky for streaming to see if you get a different result.

--HDTech