The problem with rotating displays is that LCD pixels tend to be taller than wider ( http://en.wikipedia.org/wiki/File:Pixel_geometry_01_Pengo.jpg http://en.wik

The problem with rotating displays is that LCD pixels tend to be taller than wider ( http://en.wikipedia.org/wiki/File:Pixel_geometry_01_Pengo.jpg http://en.wikipedia.org/wiki/File:Pixel_geometry_01_Pengo.jp... ), hence if you rotate a display it degrades the image quality. Cleartype especially starts looking horrible.