I have a 2007 20 inch imac. The screen resolution is 1680 x 1050. The screen is square. I recently got a 20 inch cinema screen. It's resolution is also 1680 x 1050. Now this screen is widescreen. Correct me if I'm wrong here but will one of these not distort the image? I have not wired up the cinema screen yet. I'm using a 18.5 inch monitor which has a resolution of 1366 x 768. This is widescreen monitor. Surely a square and widescreen cannot have the same resolution without distortion?