Need some help understand why I'm always loosing the Hi-Def channels / Sat (103b) every evening between 6-7pm local time in Florida. Can the sun cause anything like this? DirectTV forum indicated it maybe a heating/cooling issue of some sort but no ideas of what or why. I can loose the sat for up to 5 minutes or longer. Most of the time when the sat comes back, I don't see the problem again that evening. The signal strength for 103b is in the low 90's to high 80's most of the time but drops 0 when I loose the sat then back up to normal when the reception returns. All the remaining sat's are in strong and never go out, just the Hi-def channels located on 103b. Do anyone have an idea what may be causing this outage and is there anything I can do to correct this issue? Thanks!!