Outlook with Domino?

Is anyone successfully using Outlook as a client for Domino under Windows Vista? I have been using it for years under Win2k and XP, but on this new PC with Vista I can’t get it to work. This is with Outlook 2003 and the Microsoft Connector for Domino. They don’t specify that it works with Vista, so that might be it. The error when I try and open Outlook is:

"“Unable to open your default e-mail folders. The server is not available. Contact your administrator if this condition persists.”

Thanks for any help on this.