Go to the users and groups tab in the ACP. Go to groups. Edit each group -> set # of stars to 0.
i do this but Return as is to 0
no save this #
ok thank u
If you don't want to display stars (Even for ranks) go to the ACP>Users and Groups>User Titles and edit the titles, by editing the "Number of Stars" attribute. As for user groups, do what Heartless suggested.