I posted a while ago about an image/phospher persistence problem and how light images on dark backgrounds left smears (trails) of light across the image when moving. I had an engineer sent over after contacting unbeatable and he told me that it was a fault so they took it away. 2 weeks later the TV returns with a note saying no problem found. I cannot see how a problem which for me makes watching anything on the set unbearable cannot be seen as a problem. I have also been told that this kind of problem is commen to all tvs and people just put up with it. Someone also suggested that the problem could be down to my power supply. Basically I want to know if there is any thruth in these opinions and what I can do.