So one change in IE that came with sp2, that I haven't seen anybody comment on, is that about:mozilla is gone. Before I installed sp2, i had my homepage set to about:mozilla because it gave a nice colored window as the default. But now all it does it show the word "mozilla" on a white background. If you are annoyed that your nice default html is no longer around, there is a little trick that not many people know, which is that you can put any html you want in an about url, and IE will show it. So just write a simple html page that displays any color/design you want and set that text as your homepage.