garbindex.com is laid out using modern principles of separating content and appearance. This means that updates and additions are much quicker to do, and thus are more likely to happen.
Unfortunately, older browsers are unable to implement some of these details, and thus are unable to display the optimum layout. They are just too old.
This picture shows how this site can look in a modern browser
So, this site will look much nicer in a browser which supports web standards, but it is accessible to any browser or Internet device, including Palm Pilot, WAP phone, internet TV.
You can read a fuller discussion of why responsible developers do this.
You could upgrade your browser at no charge.
Browsers which do not support CSS will also get this message, even if they are otherwise standards-compliant.