Select 8101 Error in Thunderbird when connecting to Groupwise Server via IMAP

I have a client who is running groupwise 7.  Until recently, one of the users was able to check her e-mail from a Mac using Thunderbird.  Now when opening thunderbird (or clicking "Get Mail") she gets:

The current command did not succeed.  The mail server responded: SELECT (8101)

She is able to check her mail using webaccess for the moment, but would like to continue using Thunderbird.

She has a second account on the same server which works just fine, so I don't believe it's config problem with the client, or general settings on the server.

I have tried deleting and re-creating the account in Thunderbird, and receive the same error.  I am able to see the folder list when clicking "Subscribe," but receive the same error when clicking "OK"

Any insight would be appreciated.
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Check the user's mailbox with a GroupWise client. The user might have accidentally (or deliberately) dragged the "Mailbox" folder into another folder.  The "Mailbox" folder needs to be at the root level for IMAP to work. If this is the case, drag the Mailbox folder back out to the root level, then try the IMAP connection again.

If this doesn't fix it, several other possible causes for this, including a corrupted message, a bad address book entry, or a really large mailbox. Try emptying the trash, checking the message count, running maintenance on the GroupWise account, etc.


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hvymtl0u812Author Commented:
I believe it's a corrupted message.
Updated her to the latest GWClient and she works OK.
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