Distribution Group error when attempting to use it with Permission

J

jch

Office - Exchange- Outlook - all 2000
I get the following error when try to use a distribution group in Calendar
Permissions

The modified permissions could not be saved. The Client operation failed.

The DG has domain user permissons and we can use it for sending emails, but
if I try to use it to set permission to my calendar I get the error. Happens
in resource calendars as well.

Thanks
John
 
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