I just built an Exchange 2010 server with CAS, Transport and Mailbox roles it. I am trying to transition from 2003. When I try OWA it returns no theme or grahpics just boxes with red x's and a little text. I tried different types of authentication but none seem to make a difference.

Hi, Is it happening for all mailbox ?. If it is happening for 1-2 users then encure that active X is installed in browser. How are you accessing OWA, Is it being redirect from any other 2003 FE sevrers. If yes then directly try to access it from Exchange 2010 CAS. Some more Info: http://social.technet.microsoft.com/Forums/en/exchangesvrgeneral/thread/f33e2a42-4ecd-4a83-baf8-8d7a8340165d http://social.technet.microsoft.com/Forums/en/exchangesvrclients/thread/a42b0851-397e-4066-9b06-94b4f36fc4d7 Anil

Hey, Any update ?Anil

Hi, Please answer Anil’s question. Also, I would like to confirm whether the problematic mailbox is on the Exchange 2010 server Mailbox or Exchange 2003 Mailbox. Which URL is used? At this stage, I would like to share you the following article about transitioning Client Access to Exchange Server 2010 Thanks.Novak Wu-MSFT