I think I have a cross colour problem with my new PRO620. I often see little flashes of rainbow-like colours, usually adjacent to a very white detail (like a brite white shirt collar). Worse when my eyes divert away and my periferal vision catches it. Is this cross colour? What can be done to correct? It seems to be getting worse and the TV is only 3 weeks old. At first, I didn't hink much about about. But now, it's getting very noticeable and annoying. Please help!