Offline address book not updating on Outlook 2003 or 2007 client in Cache Mode from 2007 Server

We just upgraded our Exchange 2003 Server to Exchange 2007. When new users are added to the Exchange environment, they show-up in the client address book if they are in online mode but, not if they are in cached mode. We have tried to download the address book, set a registry key to control how the offline address book is updated to no avail. The only thing that seems to update the cached address book is if you delete the *.oab files from the client's computer and restart Outlook.
GubsterAsked:
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Computer101Commented:
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Computer101
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SembeeCommented:
Have you completed the migration from Exchange 2003 to 2007, or is the 2003 server still alive? Have you changed which server generates the OAB?

Simon.
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GubsterAuthor Commented:
This was actually a cross-org migration. The 2003 Server is in a completely different Exchange organization. The OAB is generated by the 2007 Server. If the client is in online mode, the address book is correct.
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NMirCommented:
Had the same problem, the offilne address book not getting updated straight away.  Found out that it only updated once day on Exchange 2003.  When the client checked up next day it was fine, had all the updates.

Do check out this!
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GubsterAuthor Commented:
We are manually updating the address book in the client using "Send and Recieve" + "Download Address Book". This should update from the GAL at any time.
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SembeeCommented:
You need to understand that there are two processes going on here.

The OAB needs to be generated by the server. That happens once a day by default.
Then the client needs to download the OAB.

You can change the schedule for the OAB generation, but what you cannot control is the download of the OAB by the client, other than doing it manually.

What will not happen is a user is created and then you run the OAB download on the client and expect to see the new user. Unless the OAB generation has run on the server you will not.

Which distribution method are you using for OAB?

Simon.
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GubsterAuthor Commented:
We have actually found the solution to this. The SMTP addresses on the resources were incorrect. We were able to find this by increasing the logging level on the Exchange server.
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phillygrahamCommented:
How do I change my "SMTP addresses on the resources"
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