Exchange 2010 Outlook User "Updating The Server" Upon Starting Outlook

I have a strange problem with an exchange mailbox only affecting 1 user, from any location or version of Outlook.  Shortly after starting outlook the user has a window with a progress bar pop-up that says "updating the server".  I've attached a screenshot of the window.Updating The Server Screenshot
This issue does not affect any other mailboxes on the server and started after migrating the mailbox from Exchange 2007.  Once the progress bar completes, after about 60 seconds, everything functions normally.    They are currently in a coexistence environment with exchange 2007 running on server 2003 and exchange 2010 on Server 2008 r2.   The mailbox in question resides on the Exchange 2010 server.

Has anybody seen this behaviour before?  If so have you found a root cause or fix?

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AmitIT ArchitectCommented:
Do you have cache mode enabled for this user?
tnormanAuthor Commented:
Hi Amit,

I should have mentioned that it doesn't matter whether cached mode is turned on or off.  made extra sure and deleted the ost file.  cached or not it still happens.
AmitIT ArchitectCommented:
In this case, I will create new ID and mailbox for this user. Did you tried creating new id and mailbox option.

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tnormanAuthor Commented:
thanks,  was just seeking some insights before we did that.
AmitIT ArchitectCommented:
Looks like mailbox corruption issue. Best you create new one.
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