Lately, it seems that my Apple TV no longer wakes my Mac when I'm trying to tap in to the reservoir of media I have residing on it. Did a recent software update reset some setting whereby an incoming ping on my local network will wake the machine from sleep mode? I poked around the settings of both the ATV and the Mac and I could find nothing. I saw an option in the energy saver panel to uncheck the "put hard disks to sleep when possible" but that didn't work. Hauling my but upstairs whenever I want to use the ATV isn't the end of the world, but once one gets used to a convenience, it's hard to loose it.