Calendar Archive

Hello, all,

I can't seem to get my boss' calendar to archive. I went
to File/Archive and told it to archive off everything
prior to 1/1/2000. I get an error message which
says "Error while archiving store 'Mailbox - CDELESIE.'
Cannot load special folder informaiton in store Mailbox -
CDELESIE."

I then tried right clicking on the calendar icon on the
outlook bar, selected properties and set the auto archive
to archive off everything over 48 months old. When I try
that, I get the message: "An error occurred when setting
schedule permissions."

We have Outlook 2002. Any suggestions?

Thanks!