hey all, i just got my apple tv and have been playing around with it.. one problem i'm having is that the connection keeps dropping, and itunes doesn't see the apple tv often (nothing under 'sources'). i have a wireless g router, and the apple tv is in the next room, on a shelf not obstructed by anything. what's going on? the 'signal strength' on the apple tv network settings shows maximum bars. the only thing that works is putting in the 5 digit code into itunes, only to have it drop again. am i doing something wrong? why won't it show up in itunes?