Played 1 movie great. Then whenever I tried again it gave me this message: "This GO ID is playing video on another computer or device. Please stop the previous video stream or try again later... " No matter what you do, this message will pop up. I've cleared cache, rebooted even uninstalled and still the same message. I went to my computer and same thing. Same message. Hook up the HDMI cable and it says "Please unplug your HDMI cable or TV out cable and try playing the video again." This happens every time. You would think that an organization with the resources that HBO has would make sure that the app they put out didn't completely blow before they advertised the crap out of it. Unbelievable.