Good post Nigello
We were hoping that the permissions (allowed access) could be contained in the cookie. When the SQL search or active topics string is composed unpermitted noticeboards could be excluded.
This should/could(?) work as I believe the access rights logic applies at the noticeboard level and not to individual topics?
We're going to try and sort it out next week (as we can't use it the way things are); if we get anywhere I'll let you know. In the meantime if anbody else has a solution...