Just got a great deal on a Philips LC 4331 LCD projector. The reason for the great deal is because there is a yellow strip on the top of the image and a blue strip on the bottom. I have a feeling something is burned into the LCD, but I am not an expert. Does anyone know what is causing it and if it's possible to fix inexpensively? I can watch anything in a 16:9 ratio and have no problems, since the black bars are in the same position as the blue & yellow ones. Once I change to full screen, the discoloration gets annoying after awhile. Thanks for your help!