Duplicate Calendar entries

[Lina]

Hello,

I am having some issues when there is a meeting that gets re-scheduled. In
the Outlook Calendar, the old meeting entry remains and isn't being removed,
thus creating a duplicate entry and a calendar conflict. We are using
Exchange 2003 and a mix of OUtlook 2003 and 2007 clients. We also use a
Blackberry server. However on the BB handhelds calendar, the meeting is
displayed correctly.

Does anyone have any suggestions how to fix the duplicate entries?

Thanks!