Have you tried clearing the Forms Cache?

Tools-Options-Other-Advanced-Custom Forms-Manage Forms-Clear Cache.

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Milly Staples [MVP - Outlook]

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How to ask a question: http://support.microsoft.com/KB/555375


wrote in message
...
All of a sudden, I cannot create any new appointment in Outlook2003.
When i am right cliking on the date ...and trying to select "New
Appt", there is no window coming up. I cannot even create new
appointment from File-- New-- Appointment. Everything else is
working. Can you please help.

Thanks

Dev Saha