on many web sites IE 8 just shows a blank webpage or blank portions of the page, including interestingly the results section of certain (but not all) Google search results pages!
Here's a tip. The solution is actually quite simple - no need to spend more time trying to troubleshoot this:
When you get a blank page or partially blank page on viewing a website in IE8 beta 2, just click the "Compatibility mode" button (at the end of the address bar, outlined in red below) to display the page properly, as it's shown in IE7 and other browsers:
Somehow I'd thought before that this button would only fix minor issues like alignment, but in fact it'll also solve the "web page doesn't display content at all or has partial blanks" problem or bug. (My bad - the issue is in fact mentioned on the Microsoft IE 8 beta 2 release notes page, under "Site compatibility".)
If you use IE8, you may also be interested in some tweaks to speed up IE 8 beta.