Exchange 2010 users

We recently migrated from Exchange 2003 to Exchange 2010 (virtual machine on VM Ware) Windows Server 2008R2, we use Citrix Xen app 6.0 to access Outlook 2010, old 2003 server was on the domain for a short time after we migrated. Our issue is some users cannot access 12 out of 100 to be exact, cannot access Exchange 2010 using the Citrix environment. We are getting an error message " Server is unavailable, Retry (nothing happens), Work Offline (Cannot open your default email folders. The Information store could not be opened) Cancel (closes window). Our workaround is to install Outlook 2010 locally on the user's computer. I have called Citrix support and they claim it is a Microsoft issue because if a user launches Outlook on the Citrix server, it works. The Error message pops when Outlook is launching the User Profile. Big points if any one can point us in the right direction to fix this issue.
FFNM ITIT Services ManagerAsked:
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Simon Butler (Sembee)ConsultantCommented:
If you recreate the Outlook profile on the Citrix server, does it work then?
I would also check the user account in ADSIEDIT, (or attribute editor in ADUC) and ensure that all references to the old server have been replaced with the new server.

FFNM ITIT Services ManagerAuthor Commented:
I did try to recreate the user on the Citrix server and it does not work. I also recreated their CTXProfile and CTXWorkspace. I am thinking it is try to connect to the old server too, but I do not know where to look for that information. Can you direct me to a brief on how to use ADSIEDIT? It has been a long time.
Were you able to reconfigure the mail profile for one of the users having issues from Control Panel and see if that helps?
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Anything in particular different with these 12 users that separates them from the rest?
Simon Butler (Sembee)ConsultantCommented:
Use attribute editor in ADUC then, it is safer than adsiedit. In ADUC, choose View, Advanced Features. The click on one of the users and choose properties. There should be a tab for Attributes. Click on that then go through what you see.

FFNM ITIT Services ManagerAuthor Commented:
I compared my account against one that is working and the accounts in the Edit attributes are the same.
Simon Butler (Sembee)ConsultantCommented:
Try the move mailbox trick - move the mailbox to another database and see if that resolves things.

FFNM ITIT Services ManagerAuthor Commented:
We do not have a second database, we only have 100 users. Or does Exchange 2010 come with a second database by default? If so how do I access.
Gareth GudgerSolution ArchitectCommented:
With Exchange 2010 Standard you can have up to 5 databases (1 may be allocated to a Public Folder database). But it sounds like you have 3 more you can use.

With Exchange 2010 Enterprise you can have 100 databases.

Here is how to create a second database.

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FFNM ITIT Services ManagerAuthor Commented:
At this time we will not be creating a second database. I will look into doing this when time permits. I appreciate the help and will give each contributor 250 points.
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