[Florian]

I think I almost solved it now. For some reason I had $bb->authcookie and $bb->logged_in_cookie set to ‘wordpress_logged_in_’. Probably due to some debugging oddysee. I removed the autcookie-setting and now cookie sharing and admin access are working. Yay!

The only downside is that I can not access the admin area when I used WPMU to log in. But when I login over bbPress it works, so I guess that is an acceptable loss, since it affects only the admin and not all users…