Just the other day I was playing music videos from my iTunes on my ATV2. I have the latest iTunes & ATV2 software installed, home-sharing is on, WIFI network is always strong, every other feature on ATV2 is working, tried resetting, turning iTunes home-sharing on/off, etc.. Nothing seems to make the ATV2 recognize my iTunes account anymore? What's wrong with it and how can I fix it? I've had the ATV2 since October and never had any problems till now (and I don't jailbreak). Thanks a bunch.