BuddyPress.org

The HTML folder is the same owner as blog.dir, as is the whole of the tree.

I’m on a virtual dedicated server actually. I have three other setups working completely fine on the same box though.

I tried the change to .htaccess but that didn’t work either :-s

Yep WPMU was working fine before adding BP. As I mentioned above, I have other installations of WPMU/BP up and running without this issue.

Cheers