Hate to beat a dead horse, but after upgrading to iTunes 8.1 and ATV 2.2, my ATV still does not appear in iTunes. I have had ATV for 2+ years and never had a problem with it until the last upgrade to iTunes 8.0 and ATV 2.1. I have been through every troubleshooting suggestion that I have seen, both in the forum and from Apple, but still nothing. My ATV is connected to my network (wirelessly through an Actiontec wireless DSL modem), I can still rent and buy movies, etc. But ATV does not show up as a device, or under preferences/ATV. And unfortunately, as one of the troubleshooting suggestions is to do a factory restore, all my content has been wiped off of my ATV. So now I have a very expensive and white, hot Blockbuster card.
Any further suggestions out there to solve this problem?