While attempting to aim my new Square Shooter Antenna, whenever the signal strength on an Analog OTA channel would drop or even vary, my picture fluttered and the receiver seized and refused to recognize the remove. After I shut the receiver off using the front panel, the image remained fluttering on my screen (This also happened with Digital OTA, just without the flutter). This happened several times. Did a front panel reset, reinstalled a set of Rabbit Ears ($12.99 at Wal-Mart--Square Shooter, my @ss, what a POS), deleted all analog channels, problem solved, for now. 1. 480p 2. DVI 3. Dish Monitor (RCA 34W20) 4. All Analog OTA, when signal strength varied. 5. See above. I'll make a special package deal, three week old 921 and Square Shooter, make offer... Sigh. All I want to do is watch TV, without Windows 95 Blue Screen flashbacks.