I recently upgraded from WordPress MU 2.7 to WordPress 3.0.3, and the page links that are on the parent blog, (e.g. http://www.achillesblog.com/about/) on the splash page's navigation bar, now are just being redirected to the main url (http://www.achillesblog.com)
On the child blogs, such as http://www.achillesblog.com/dennis, the page links on the navigation sidebars work correctly.
I've followed the directions for upgrading closely from http://codex.wordpress.org/Upgrading_WPMU, but maybe there is something else that I am not aware of, or missed.
Please let me know how I can fix this problem. Thanks in advance.