I have had a couple of these systems over the years. When I've been searching on the internet to buy the second one, I found what you are experiencing is a pretty common problem. I bought the second unit for a second home and it was advertised as having some of the pixels missing on the display. when I received it, all of the pixels were present!! However, over time, they are slowly disappearing. I think this must have been a component or design flaw in this particular model. Today, I found the original system that has been off and stored for a couple of years. When I put it away, the display seemed to be perfect, but today I noted 4-5 pixels on the right side are now gone. I dont know a solution other than instead of investing money in fixing it, to purchase a brand new system. The prices are pretty good now, especially if go to Costco or Sams, or just searching the net for a good price on the model you want to buy.
on Jul 13, 2016