I'm running af WP Multiste, with more than 100 separate sites. I have with succes used the WP MU plugin "Blog Templates" by author "gregsurname" to create almost all sites in WP version 3.0.5 - (Plugins website).
But as I now have updated to WP 3.1.3 suddenly I can't access the wp-admin for all of the sites that have been created with the WP MU plugin "Blog Templates". It's not a problem to actually see the sites, but the second I try to enter the wp-admin, the site simply places a "SEPARATOR1" text behind the URL, and nothing else happens.
Example: trying to access wp-admin in http://www.cgmwp04.dk/hald/ ends up with http://www.cgmwp04.dk/hald/wp-admin/separator1 and a error message saying "The requested page can not be found.." All sites where I haven't used this plugin works perfectly after upgrading to 3.1.3. Can anybody help?