For some reason any post or page on any sub domain site redirects to the primary site. This is not related to updating to 3.03 since it happened before that. I am not sure it is related to the htaccess file either. Two additionally strange things that I noticed points away from htaccess:
1.) In the ms-sites.php listing of sites, all the sites show up as '/'. The settings all look ok and I can still get to the backend and homepage for them all.
2.) When moving between backends as a super admin, it requires me to login to each instead of being logged in to all...
Here is the site: thepointnews.com and if you to, for instance, http://emails.thepointnews.com/smcm/2010/12/08/missing-books-from-educational-studies, it takes you right back to thepointnews.com