Has anyone noticed a disparity between Outlook 2003 and 2007 and how it handles all-day events through the Outlook connector? We have two people pointed to a shared calendar, one running Office 2007 and one running Office 2003. (The shared calendar originates from a Mac user using the web portal.)

There is an all-day event ("out of the office") that spans Monday and Tuesday (March 17th/18th). The Office 2007 user sees this all-day event, as well as all the rest of the shared calendar's contents. The Office 2003 user sees the rest of the shared calendar's contents, but not this all-day event.

We have tried completely uninstalling and reinstalling Office 2003 and the Zimbra connector for Outlook, but are still experiencing this odd phenomenon. Is there somewhere else we should be looking?

Thanks in advance for your help--it's greatly appreciated.