We recently began transitioning to 2007 Exchange. Our current environment contains two Exchange 2003 servers. One Back-End and one Front-End. The new 2007 server is fully patched and running SP3. I have migrated a few mailboxes over as well as the public folders. The public folders work fine when using Outlook but when using OWA, they don't show up. There isn't even an icon for public folders from the OWA page. I have tried multiple browsers and also made sure I was not using OWA light. I found this post on EE which details the same issue but it doesn't provide a solution other than contacting Microsoft:
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