For some reason when I'm viewing my local FOX OTA DTV station, my Dish 6000 loses the ability to format with Partial Zoom or Full Zoom. If I turn to any other OTA or Dish station, those options become available again. It only happens with FOX. Is it possible that Cleveland's local FOX is sending an irregular signal that confuses the Dish 6000? Hopefully someone will have the answer to this. TIA.