My set has gone crazy...!!! Firstly the geometry has been getting worse along the bottom edge on 2.35:1 material....with a bow effect, making the border bigger in the middle of the screen, and thinner at the corners. Secondly, the TV will no longer switch to widescreen upon anamorphic DVD's, i have to change manually! Thirdly, the brightness has gone stupid, must be about 500% over what it should be....the picture looks like an over exposed photograph on all inputs, except RGB. Strange thing is, the teletext is ok on the channels?? Is there a way of reseting the Tv to factory defaults to see if that makes a difference? please help!!