I have upgraded to 3.2 but even before then I was having some stuttering issues when transcoding or streaming to my xbox. However the update did fix movies stopping before they were finished thankfully. The issue I am having is that sometimes the audio and video slows down by half a second as it plays or the episodes will almost slow down and fall out of sync. I have a really good spec'd pc and the network is all within the same room and using ethernet so I am not sure what the problem is. I am not sure either that the problem is a specific format because all formats seem to be affected. The only series that I have which this does not happen on is an old show back in the 90's. However newer series like defiance, Dr Who etc etc are all affected. Some are MKV and some are AVI. It generally depends, So I am at a loss here as to what to do.