Exchange 2003 Meeting Room Resources show "no information" for free/busy after May 31st, 2012

Hello,

We are on Exchange 2003, with clients on both Outlook 2007 and 2010.  We have set up multiple meeting rooms as resources in our Exchange, and use the Auto Accept Agent for booking the rooms.  
When a user goes to book a room after May 31st, the free/busy shows "no information" for all the meeting rooms.
What we have tried so far:
1. Opened the meeting room exchange accounts with the "outlook.exe /cleanfreebusy" switch
2. Changed the free/busy options to Publish 24 months of information (even tried 12 and 36 months)
3. Dismissed all reminders for each resource
4. Restarted the System Attendant Service on the Servers
5. Rebooted both Exchange Servers
6. Moved one of the mailboxes to a different store
7. used MFC MAPI to edit the PR_freebusy_entry ID (cleared it out)

Note - when we run the /cleanfreebusy switch on the resource, it the free/busy information shows information.  Then, if someone makes an appointment to that resource, the free/busy information comes back as "no information" again.

This environment has been set up and working for years, and now all of a sudden we cannot see past May 31st.

Any Ideas?
server875Asked:
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server875Author Commented:
Well, we called Microsoft, and after a few hours on the phone, this is what fixed our issue:

1. Logged in Exchange System Management and changed the replacation piority to urgent on the schedule+free busy folder.
2.On the top level of public folders right click and veiw system folders, then resend changes.


Possible fix if the above steps fail


Article ID: 917687 - Last Review: January 6, 2011 - Revision: 2.4
The published Free/Busy information for a mailbox is displayed for the default period of two months after you have configured a longer period in Outlook
View products that this article applies to.

SYMPTOMS
You configure the published Free/Busy information for a mailbox to be displayed for longer than the two months that is the default time period in Microsoft Outlook. However, after some time, you see that this information is displayed for only two months. This issue occurs when you register the Auto Accept Agent to process meeting requests for the affected mailbox.

If you run Outlook by using the /cleanfreebusy switch, the issue is resolved for a short period.
 Back to the top
RESOLUTION
To resolve this issue, you must include the period for which you want to publish Free/Busy information in a registry entry. Configure this registry entry on the Microsoft Exchange Server on which you have installed the Auto Accept Agent. Configure the entry under the following registry subkey:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Excdo\Parameters
Name: FBPublishMonth
Value type: DWORD
Value data: The period, in months, for which you want to publish Free/Busy information
For example, if you want to publish Free/Busy data for 4 months, type 4 in the Value data box.

NOTE for Microsoft Exchange Server 2010, the DWORD is FBPublishMonths

After you add this key, you must restart the Internet Information Services (IIS) Admin Service and the System Attendant service for this change to become effective.
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