We have a 05 Mitsubishi WS-65315. After our cable company upgraded their signal, they had to come out and turn off 720p because some hi-def channels were only showing a blue screen. They have on 480i, 480p and 1080. Things work ok except now we have a small gray see through rectangle in the extreem upper right hand corner, with a white number 2 in it. They cannot get rid of it and say it's nothing they did, yet it wasn't there before. I have unhooked everything from the tv and unpluged it for 2 hours, but to no avail.
