I installed plex. Was very easy using firecore - kudos. However, I can not get the media to play. It plays on the computer using PLEX just fine. On the atv2 I can view all the movie choices that are on the computer, but when I select one it goes to the poster screen (full screen) but just sits there. Never plays and never gives me any other options. Am I doing something wrong? Anyone else ever experience this?