Hi Chaps. I`ve built my own screen (ripple free - Hooray!!!) to be exactly 16:9 (160cm x 90cm - simple!). When I view 2.35:1 images the picture fits the screen horizontally with the usuall black borders top and bottom. The problem occurs when I view 1.78:1 (16:9) material. Again the image is fine horizontally but there is overlap top and bottom with the image extending out of the white viewing area, over the black border frame and onto the wall. My Denon 1910 is set to 16:9 and so is my Infocus 5700 and the picture is definately in the correct aspect (i.e not streched or squashed). Does anyone know if commercial fixed screens are exactly 16:9 or are they produced with a bit of latitude vertically? I don`t know if I have an electronic aspect missmatch or wether I`ve been naive in building an exactly 16:9 screen.