Tutorial on Designing for 800 x 600, 1024 x 768, 1280 x 1024 and higher.
Designing web sites to fit all resolutions is a very important web design principle. Try out the Entheos site in all resolutions higher than 800 x 600 and you will find that it is designed to fit the page exactly. Therefore, visitors who have higher resolution can see more content in one page which reduces scrolling.
Most web sites are designed for only one resolution. They may look perfect in a 800 x 600 resolution but if viewed in a 1024 x 768 resolution look a little empty. You'll find a lot of wasted space around it making the web site look quite small.