I bought a new ATV today to replace my 1G, which has been showing signs of being on its way out (GPU problems). My set up is a Samsung plasma 1080i, not 1080p, and a Pioneer AV Receiver. My old ATV was connected via HDMI to the receiver, so I simply unplugged the HDMI cable from the old ATV and connected it to the new one. The first thing I noticed was that blank screens, between selections where there is no signal coming from the ATV, would flicker. Not black to white but black to dark grey. Then I noticed there was no sound from the clicker when using the remote. Finally, when playing a movie I saw both symptoms together. There was no sound and when scenes changed and the screen should have been completely black, it was flickering black/grey again. The ATV is re-boxed and ready to go back to the store but something is niggling at me that it may not be the ATV itself but something in my setup that doesn't like the new device. Anyone recognize any of this at all?