I've had my ATV for a little under a week. I didn't know about the "stand-by" function until tonight, so I just left it on while I was at work. A few times, I've come home from work, hit the menu button on my ATV remote and the ATV appears to reboot -- the black screen with the silver Apple logo appears, and I think I recall the amber blinking light. Is this normal? I know the ATV gets extremely hot and I'm hoping the restart isn't a result of this.