Bought one of these Sony' 28" IDTV's 2 weeks ago. From the start it had pink/purple cresent discolouration (2") at either side of the screen. Faint but very noticeable on white or very pale backgrounds. Sony say it shouldn't happen, Curry's engineer said it wasn't correct. New one was delivered this morning and it has the same problem. Do only Sony's suffer from this? I'm new to widescreen so am I looking at "the norm"? Any advice much appreciated.