TheOneAndOnly BiGMaC: Yours is pretty dismissive attitude. This is a real issue that MANY people are experiencing. I'm an A/V installation pro... with ten years of experience with a big audio manufacturer before I started my business seeven years ago and I am experiencing the same issue on several jobs. While it is entirely possible for even a "professional" to make mistakes... I am searching for answers myself. When the ATV2 is connected directly to a modern TV with a "High Speed" HDMI 1.3a or 1.4 rated cable it should just work -- that's supposedly the whole point -- using a single cable.
The MPAA has saddled us with HDMI - so that they can have copy protection. There is no alternative when you want the highest resolution and the best audio. Do some research on the "Analog sunset." The problem is that each component manufacturer must follow the HDMI specification to the letter... and they don't. As a result, we have problems like this. It can be a simple timing sync error. More commonly it is a Voltage drop issue (poor quality cable, cables longer than the 5 meter spec, or connectors that come loose.)
My hope is that Apple does it correctly... but, my problems are with ATV2 and: Sony, Mitsubishi, Sharp, and Samsung. Are each of these TV manufacturers doing it incorrectly???? Is anyone out there going to tell me that i don't know how to plug in a HDMI cable correctly? Does Apple expect me to tell my clients that they need to unplug, power cycle, and replug the HDMI connector each time they want to rent a movie?
Rediculous... but, for all of my negativity, it is a beautiful product. Apple just needs to own this problem... or, like i frequently have to do... fix someone else's problem and be the better person (company) to keep your clients happy.
-Matt in Ohio