azhar wrote:
playback of movies I've downloaded, movie unexpectedly stops and returns to main menu screen.
I am guessing you are using WiFi for AppleTV? WiFi is not a great option for streaming video (especially HD ) since it has very little tolorence constant interference and hiccups you have with wireless connections. Unless you have carrier grade WiFi hardware and very little RF interfearance in your area you will always have some issues with WiFi. You save your self a LOT of aggravation if you use a wired connection for any streaming video applications.
You can try trouble shooting the WiFi connection issues, but it requires technical ability to download tools to read the connection quality, and modify admin settings on your router to try different channels and frequency ranges. You can also setup ping tests while you are watching to see if the router is temperately freezing up. Again these all require technical knowledge though