Evidently if you are using certain versions of Internet Explorer on certain operating systems, there is a problem with the page length and scrolling on the site. This is not a fault with the CSS on the site. It's a software glitch in IE. I already have over half a dozen hacks in my code to accomodate Internet Explorer. All other browsers such as Firefox, Netscape, Safari, etc. seem to view things fine. Internet Explorer 7 has been reported to fix the problem.
Parsa
I understand that IE 7.0 does have some compatibility problems at this time.
Where I work we received and email from out Techies not to download this new version.
I hate to dis Microsoft (well not really ;D ), but I really encourage people to look at other browsers like Firefox, Mozilla, Netscape, Opera, etc.
As a CSS site person, I found this quirksmode (http://www.quirksmode.org/css/contents.html) web page interesting.