When you change the name of a Yahoo Group?

The owner of a Yahoo Group of which I am a moderator changed the name of the group. He has entered the link correctly in the management section of the group. However, all the members who have 360 pages still show the old group name on their page. When you click the group, you get a page that the group does not exist. WHAT and WHERE do you change in the Moderator Management section to get it to show properly to existing members at the time the group name and link change occurred?