One of the later updates to Leopard, prior to the launch of Snow Leopard, fixed the interminable problem of my ATVs dropping off iTunes. Then I updated to Snow Leopard and, bingo! The problem was back, and worse. They would all drop all the time, no exceptions, no respite. Until yesterday. It suddenly occurred to me to check the power saving settings. Wouldntchaknowit, the computer was set to sleep after 20 minutes or so (presumably an SL default). So, the ATVs weren't dropping, the Mac was going to sleep and cutting them off! I put the computer back to always on (the screen still shuts down), and all the ATVs have been online ever since. Question: Isn't SL, meant to have the ability to wake the computer over a network? I guess this doesn't work for ATVs, or do I need to adjust another setting? Any info would be appreciated.