We are having issues with the Calendar not refreshing. If a User sends an appointment it will not show up on their Calendar until they perform an F5 refresh or move from one folder to another. The recipient, once accepted, may not see the appointment in their Calendar for several minutes. No firewall is set on the PCs, the refresh interval is set to 1 minute. Any ideas. I really don't want to have to tell my Director to just wait a few minutes and it will show up. This should be instant.