I've had my Toshiba 37WLT66 for two and half years or so and recently I have noticed some faint vertical banding 60% of the way across the screen. It's mainly noticable during fast panning such as on football. Also, I have noticed some screen burn from running the acreen in 4:3 mode after only 30 minutes - I see purple stripes where the black borders were. Now, I don't know if I am seeing these now because I'm looking for them or it is something new but I decided to use my John Lewis 5 year warranty to have this looked at. The local service shop picked up the set today from home and my wife took the opportunity to show them the problem with a grey screen which shows the problem at its' worst. The person who picked the set up said there was a problem and they would probably replace the screen. However, I have just had a call from the shop saying they can't see a problem and this sort of banding and screen burn in such a short time is normal for LCD screens. They are going to keep the set running overnight to see if the problem gets worse. My question is - are the shop really right in saying this is normal? They are using a test system which isn't showing the problems that I can see, so where do I go from here if they say everything is fine?