[rhprice]

Another hopefully less painful fix other then removing and re-adding yours: Procedure to repair the Out Of Office functionality:
1.Customers Desktop computer
a.Verify Cached mode is disabled.
i.Go to "Tools/Email Accounts/
ii.Click on "Next" then "Change"
iii.Verify there is not a check mark in the "Use Cached Exchange Mode"
b.Export customers rules
i.Go to "Tools/Rules and Alerts"
ii.Click on "Options"
iii.The following instructions are crucial, if this process is not followed the customer rules will be deleted and then the customer will have to recreate them.
iv.Select "Export Rules" Make sure of location as you will need to import the rules back.
c.Close Outlook and the Office Communicator clients.
i.Bring up "Task Manager" on the customers computer and verify the Outlook and Communicator processes are not running.
d.From the command prompt type in:
i.C:\program files\microsoft Office\office11\outlook.exe /cleanrules.
e.Once outlook restarts you may import the rules and test the Out of Office functionality.