Access Denied after upgrading

In the 22nd January 2009 release a new user role was introduced. If you are upgrading from a previous release you need to assign the new role to all your existing users. Log-in to :  http://localhost:8080/admin/users.jsf with administrator privileges to configure your current users with read as well as write permissions. Select the Read Access role to all users who need access to contacts / calendars and reports.