Exchange 2000 and Outlook 2002/2000

A customer of mine had their server migrated from Windows NT 4.0 with Exchange 5.5 SP4 to Windows 2000 server with Exchange 2000 SP2. Everything seems fine except the outlook calendaring problem.

Previously, the user grants his calendar to his secretary as "Author ", hence the secretary could schedule all the appointment for him. After the upgrade, the secretary could still access his boss calendar but, could not view most of the item's details( only could see one or two). Although she could view certain date in BOLD (means appointment have been done), but there's no detail on the date. Have anyone come across this problem before?

Thanks.

 

Has the permissions been changed on the folder?