was watching tuner 1 this a.m. & suddenly got a pop up box saying a problem was dected with the switch & to run a switch test. I did not, but the picture came back on. What caused this? I did notice this past weekend with all the snow, I was not getting all of my channels. I ran a switch test then & it showed 119 with a red box instead of green. Ran it later & both boxes were green. I have dish 500 with 625 receiver