Exchange 2007 Public Folders not accessible in Outlook 2003

I am migrating from Exchange 2003 to 2007 and I have moved all mailboxes to the new Exchange server but I have a problem with the Public Folders. I have replicated all Public Folders from the Exchange 2003 box to 2007 and have now removed the Exchange 2003 replicas. All of my clients are Outlook 2003 and when I dismount the Public Folder store on 2003, my clients are no longer able to connect to the Public Folders which also affects free/busy data. If I mount the 2003 Public Folder store, the clients can access the folders again.

Any suggestions would be greatly appreciated.
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Change the Default PF on the Mailbox Store to point to the E2K7 PF store.
I_play_with_DNAAuthor Commented:
I've followed the technet KB but my clients still can't open Public Folders without the 2003 Public Folder store mounted.
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Close Outlook, reopen Outlook, try again

Can you tell where the users are connecting to access the PFs? With Outlook open, hold down the Ctrl key | right-click the Outlook tray Icon (next to the system clock) | select Connection Status from the pop-up menu

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I_play_with_DNAAuthor Commented:
Closing Outlook and restarting didn't help. When I look at the connection properties, I see 3 Public folder connections to the old server and 2 to the new one.
I_play_with_DNAAuthor Commented:
I found and followed through with it but when I search for replicas it still shows this:

Replicas : {}

Also when I look at the replication status of the Public Folders on the Exchange 2007 box through the 03 System Manager it shows "data not available" for the Schedule+ Free Busy folder.

I'm stumped...

Schnell SolutionsSystems Infrastructure EngineerCommented:

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