Error when exiting Outlook 2000

[Muse]

Every time I close Outlook 2000, I get this message (I quote exactly):

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Outlook.exe - Application Error
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The instruction at "0x3a2712f7" referenced memory at "0x70442dc8". The memory could not be "read".
Click on OK to terminate the program

OK
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What can I possibly do to stop this error message from happening. It's not a showstopper, but it's annoying. Thanks.