A few days ago, I watched the widescreen version of the movie "Shrek" and noticed that even though the picture is in widescreen format, some of the left and right parts (approx. 10% in total) of the picture are missing. I ran the movie on a 22" 4:3 analog TV set when this happened. The movie is in 1:78:1 anamorphic widescreen. When I ran "Shrek" on my DVD-ROM using PowerDVD, I noticed that all parts that are missing on my 4:3 TV do appear on my PC screen. It was interesting that while the movie's menus are in widescreen by running PowerDVD, they were in pan-and-scan on my TV screen. I wonder how can this be? I set up the DVD player correctly according to its instruction manual by setting the player to 4:3 letterbox, but from this some parts of the widescreen image are missing. Has it something to do with the width (22") of the TV set? Having an 4:3 instead of a 16:9 TV set? Or something which I am not aware of?