Ever since the last update any movie I try to watch in HDX on the Xbox 360 will playback very choppy almost like a slow motion effect every few minutes or so. The connection bar is fully lit up. The only way I can play the movie back smooth is to downgrade the quality to HD. Even then, I constantly get error messages saying Vudu is currently not available. This is very frustrating considering that HDX played back fine prior to the update, even though I still got playback errors. I can watch 1080p on Netflix and Xbox video with absolutely no problems, but Vudu is pretty much unwatchable.