OK guys to cut a long story short an engineer has just come out to see my THIRD replacement Toshiba 42PW33 RPTV. The problem was there was a red blur in the lower right hand corner of the screen. You can read my original posts here. I have become totally peeved off with this, mainly because I've had to get off work each time an engineer or delivery guys call out. Therefor the engineer gave me an EAN number so that I can go back to Curry's and get a replacement or my money back. I'm going to upgrade to a Toshiba 42WH46 model hoping that the same problem does not occur. The engineer however said that the problem must be happening because of something in my room. He said that it could be my AV Receiver (Marantz SR4300) that's causing the problem (BTW I don't have speakers beside the TV). He also said it could be underfloor heating, but I don't have this, all I have running under the floor are two plastic water pipes that are going to the radiator at the far end of the room. Is this problem being caused by me? Should I upgrade to the 42WH46 or will the same problem occur? I'm going to complain to Curry's and ask for the 42WH46 for the same price as the 42PW33. Please help guys, I don't know what to do!!