!!HELP!!! Cannot connect to Exchange Server from a RDP, ICA session or server local machine
 

Please excuse the posting as I wasn't sure which group to post this in. I'm
having issues using Outlook from a server desktop, an RDP or ICA connection.
I have remote users who connect using Citrix. They logon to the Citrix
server desktop (Windows 2003 Server) and use Outlook from there. They can
also use Outlook from within Citrix as it is a Published Application. I know
some of you are going to suggest why don't they use OWA but let's not get
into that. I can log onto any workstation here in the office and connect to
the Exchange server and open their Outlook. What I and they cannot do now
is....

Create a new profile on the Windows 2003 server desktop locally or from a
RDP or ICA remote connection. The error message I get is..........

"Cannot start Microsoft Office Outlook. Unable to open the Outlook window.
The set of folders could not be opened. The connection to the Microsoft
Exchange Server is unavailable. Outlook must be online or connected to
complete this action".

I am at wits end on this. I posted in other NG's and cannot get a
resolution. Any thing I read that is slightly related sort of points to RPC
over HTTP but I've never had that implemented before and all worked well
before. All input and suggestions greatly appreciated. Thanks.