Bug: User is logged in and active chatting. Then she presses logout in the "Navigation" menu. After the usual redirect she presses the "back" button of the browser (in my case Firefox 3.5). Now she is anonymousXXX changing to anonymousYYY every view seconds (known Bug?).
The logged in users that are still in the chat get masses of "AnonymousXXX" lines - very bugging.

Setup: Anonymous access NOT allowed! Container FILE, Drupal 5

Can be tested in www.wiiclub.de with a valid account.

If I can help you, I will. Thanks!