So I have had my ATV1 loaded with 20 GIG of movies that work, however it seems at time when I connect it via HDMI or Component cables there is no sound. Has anyone had this issue and is there a specific setting I am missing, I just got this from BestBuy and have been watching movies on it, but the no sound issue seems to be a problem. When I reset to factory then load movies it works for a while then back to no sound?