Try resetting the view and deleting forms cache.

If you need instructions for either, see:
http://www.outlook-tips.net/beginner/formscache.htm
http://www.outlook-tips.net/beginner/resetview.htm

--
Diane Poremsky [MVP - Outlook]
Outlook Tips: http://www.outlook-tips.net/
Outlook & Exchange Solutions Center: http://www.slipstick.com

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"BrettW" wrote in message
...
My calendar quits accepting meeting requests and cannot accept a new
appointment ( File - New - Appointment) about once a day. Works fine
after a
reboot. Using Windows XP Pro with Office 2003, both updated. Any ideas?