Installed a fresh version of wordpress 3.0 and didn’t setup multi-site and it’s still doing it!
Wouldn’t say it’s http://core.trac.wordpress.org/ticket/14011 but perhaps another bug?
Any ideas anyone?
Just to note I also tried CMS Press and they also do the same thing (404)
but users will be adding categories later
apljdi sounds like the best idea so far
of that sort? is there another way? sorry the ID’s could be anything