Have you tried rebooting Windows? Do you get any error message(s) when you try to create an appointment?
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Milly Staples [MVP - Outlook]
Post all replies to the group to keep the discussion intact. All
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reading.
After furious head scratching, rgwalker asked:
| All of a sudden I cannot open or create new appointments in my outlook
| calender. Mail, contacts and task are working fine.