On several forum sites (including, but not limited to forums.omnigroup.com) there are often bugs with the way pages (particularly the main page) are rendered.
Created attachment 10965 [details] Screenshot of bad rendering.
Similar to bug 10522.
I am marking this as a duplicate because I have not seen the problem since the fix for the other bug went in. *** This bug has been marked as a duplicate of 10522 ***