I have the Sony KDSR60XBR1 set.It was purchased in April of 2006,the build date is February of 2006. I have just noticed that I have the dreaded green blob issue.The entire upper right hand corner of my set is green. I called Sony. They want me to call them back when I get home from work to try and troubleshoot the problem. From what I have been reading,there is no fix for this issue.Am I correct? I read that people have had optical blocks changed and the green blob still shows up? I am going to give them one shot to fix this.If it is not fixed,I am going to ask them for a replacement set. Has anyone had the optical block changed and the set is ok? I heard in time,the green blob will returnThanks for the info.I'll keep everyone posted on what happens.