Just noticed this on moodle.org. Could it be bugs in 1.9 beta?
Profile page -> Forum posts tab shows blank page (for any user)
Participants list -> "Sorry, but you do not currently have permissions to do that ()"
I don't see these problems, now. (Don't think that my teacher's rights in the french course are the explaination)
John - I am not experiencing these either. I'm able to view my own posts and see the participant list. Peace - Anthony
It happened about 12 hours ago (late night for me) and the problem had cleared up by this morning. Thanks for checking!
I'm doing a lot of stuff with this site as part of the 1.9 testing, updating frequently etc. Best place for such reports is: http://tracker.moodle.org/browse/MDLSITE