Some websites just don't fill a widescreen monitor - I've got a 24" monitor and the BBC website, for example, is set at what looks like an A4 width set to the left of the screen. The Guardian's website for me is also a fixed-width centred, leaving white strips down each side. PCA is also a fixed-width, with wide blue strips down each side. It's one of the quirks of a widescreen monitor that you have to get used to. And actually, I prefer fixed-width sites. Wikipedia stretches as wide as the monitor and it's quite hard to read long, long, long lines of text.