Since you have successfully setup Entourage with your Exchange 2007 box, I tend to think that it is a problem with the configuration of the new Exchange server.

Double check, to make sure that all required ports are open and that your MacBookPro can “talk” to the Exchange server. Do you have your exchange server address setup correctly within Entourage, etc. Does the same account , WITH the same settings work on Windows?

Hope this helps you on your way to the solution.

Kind Regards,
Nitai

I bought the new Mac Book Pro with Leopard operating system and Entourage 2008 installed. I tried to configure Entourage to be as the default email program to work with Microsoft Exchange 2007 (which is installed under the Windows Server 2003 64-bit platform). Entourage sends and receives emails using IMAP but unable to sync with the address book, Calendar, or viewing the sub files of my inbox on the exchange server. Also sometimes I get the email twice on my Mac Book but once on a windows outlook email client. When I configured it to connect to MS Exchange Server 2007 using the “new account” – Exchange option it didn’t connect to the exchange server (basically I doesn’t bring anything from the exchange server using the exchange setup option when setting up the new account on the macbook)”. Please not that I’ve tried the setup of Entourage 2008 (Mac Workstation and not my MacBookPro) to “another” Exchange 2007 Server 32 bit and it worked!!!
I appreciate any help with this regards as I am new to the MAC world and I like it so far but my business and my personal productivity took a serious negative impact because of the fact that my emails or calendar are not sync.

Much appreciated.
Tareq.