this had occured twice today, for no apparent reason.
One of my admins made a member a moderator. The new moderator found he couldnt view any threads, and got this strange link in his address bar "ubbthreads/brake-bust.php...." where brake-bust his is username.
We found that changing his theme back to the infopop standard fixed it.
I just had another member descibe me the exact same problem.
I told him to change to the infopop theme and it also solved his problem.
Anyone know whats going on?