outlook 2003 doesnt close

[Peggy]

Evrytime I close outlook 2003, I have this error message.
"Outlook is not responding If you are using an Exchange
Server email
account, you can cancel pending server requests by
clicking the Outlook icon
in the notification area, and then clicking Cancel
Service Request on the
shortcut menu."
If I try to start again outlook, it will create another
process in task manager. The only way I can close outlook
is by ending the process (outlook.exe) from the task
manager.
I am using winXP and I have all the patches for xp and
office 2003. Also I reinstall the office and still doesnt
work.
Please help
(e-mail address removed)