We are receiving a prompt for authentication when using IE8 and accessing links in OWA. If you provide your domain/user id and password you can access the link. It only prompts once for the session. After authenticating you can access other links as long as you do not end the session.
IE7 and Vista works fine and IE8 and XP works fine. The problem happens when using Vista and IE8.
We are using Exchange 2003 Enterprise server,service pack 2.