Error after logging in

I'm puzzled - I've have had no problem using the Admin Console for over a year -up until recently. Now, after I successfully login as Admin, parts of the console are not available, for example the Membership Management section. Instead of the list of members, I now see the following text (while I'm still logged in!): and lower down the output from this:

Other functions still work - eg. the editing of text on the pages.

Am using (and have always used) Mozilla Firefox, with Adblock Plus and NoScript addons disabled. Strangely, if I use Internet Explorer (which I dislike using as a web browser), it works fine.

Paul

If you are logged in as the admin you are NOT a member.
To use features as a member you need to log in as a member.

Try clicking the reload link at the bottom of the page and then log in as a member and see if you still have the issue.