Have set the Mac Mini (MacMini5,1) to go sleep after 15 minutes, however it is not doing it. It's being used as a media server, (in headless mode essentially with no keyboard or mouse connected). Only device connected to it is an external USB HDD (that goes to sleep on its own). Only other cable is HDMI running from mini to an amp, and the HDMI from amp to the TV (if i ever need to use a monitor). Apps that run all the time are iTunes, SABnzbd (which is currently idle), LogMein client, AirVideo server, growl, and EyeConnect. Shared service from the mini are screen sharing (for remote access), and File sharing. Running Lion 10.7.3 and mac is connected to network via ethernet (wifi is enabled (but not connected to any wifi network) for AirDrop. Any ideas why it's not going to sleep?