Yo everyone, We are running Windows 2003 sp1 and Exchange 2003 sp2 in a cluster. I ran most of the Exchange DST updates (Exchnge Server DST Update), and the last one is to run is the Exchange Calendar Update Tool. Here's my question: If all of our Exchange servers are in one location (in the same building) in CST zone do I still need to run the Exchange Calendar Update Tool? We are a University and sometimes the Fac/Staff will travel and access their mailboxes via OWA or VPN. The students come from all over the place but they only access their mailboxes via OWA. All of our servers are in one time zone. -- TIA, Clayton P.S.: I wrote an iTunes podcast tutorial and just want to publicize it. You can find it at: http://www.nikoli.net/itunepod ***************************** 1.. Apply the Exchange Server DST update. 2.. Run the Exchange Calendar Update tool against all