Hi Arron, thanks for the quick response.
It seems to be hanging on to my login now, but it's still not quite right. From the Forum Index page, several forums are shown as having new messages, but by the time I get through to the individual forums, none of the messages are shown as unread.
I can see which are new by the dates given, but after looking at one forum, marking all messages read and returning to the main index, all forums are shown as read, even though they are not.
All the best,