Users can't view the discussions they started?

First of all sorry if this is posted in the wrong place.

I have a vanilla forum (http://www.hencam.co.uk/hencam_forum/) which has just started acting strangely - first of all, the contents of posts stopped displaying which I eventually tracked down to the transmogrifier extension. When this was disabled, it was ok again (although I hadn't changed anything to cause this).

Whilst trying to trace the problem, I upgraded to the latest version of Vanilla, and everything is working, except that users can't see discussions that they started!

They can see discussions, as long as they weren't the original discussion starter!

If you log into my forum using guest / guest then try and view a discussion started by the user:

http://www.hencam.co.uk/hencam_forum/comments.php?DiscussionID=501&page=1#Item_0

You'll get an HTTP 500 internal server error page.

However, if you log in as another user, for example guest2 / guest2 then you'll be able to view it and even reply etc!

Please, if anyone has any ideas why this would happen, I'd be very grateful.

Regards

Neil
www.hencam.co.uk

neilw

I think I've resolved this - I downloaded the latest version again and re-uploaded, overwriting everything except my /conf directory...