Last night while watching American Idol (recorded), it froze up on us. The remote would not work, nothing. I ended up holding down the power button for 5 seconds to reboot the 722. After awhile it came back up just fine. This morning when I woke, I noticed the receiver had one light on the front that would go on/off. I pressed the front power button to reset it, but it never did anything - there we no lights on the front of the receiver for probably 10 minutes. I ended up unplugging the 722 for about a minute, then plugged in again. I waited for probably 10 more minutes, then eventually I received the "Acquiring Satellite Signal" message. I am ok now, but are these indications that my receiver is having problems???