I've recently begun to get an error message saying that "my display is not authorized to play" TV episodes downloaded from iTunes, and that I need to connect a display that is "HDCP-compatible." I use a new Mac mini, bought in December, and a 24'' HP display that is also fairly new (purchased last summer). Up until now, I've had no problems playing these episodes on my mini, nor on my older computer (where they were first downloaded). Both computers were hooked up to the same monitor via mini-DVI-DVI / DVI-HDMI cables. I've searched these forums as well as around the internet, and most of what I've found is from people using mini-displayport. I also haven't found anyone who randomly had this problem start after having viewed content on their machines successfully. It was literally not happening one day, and then started the next. I never changed anything on my Mac, either. Any ideas?? I'm stumped 
