I just purchased one of these yesterday. It set up great after I took the update. The way I have it hooked up is through a lan powerline adapter. When I hook it up close to my pc which is running win 7 64 bit, it streams the movie files without any glitches. As soon as I move the unit upstairs to my bedroom the movie files slow down and become choppy. Is this due to the large files over the network? I was kind of hoping that I would not have to hook up an external hard drive to this unit. Any help would be greatly appreciated.