[mhutchesson]

This is how I resolved this issue,

Post our Installation of Exchange 2007 we had the one way Calendar sync issue using BES 4.0 ( although all the mailbox's where still on the Exchange 2000 Server )

I Installed the latest BB BES 4.1.3 with HF2

I couldnt get the MAPI to connect on the server,

I uninstalled the Exchange 2003 system manager and installed the new ExchangeMAPICDO.exe


Now here where things started getting better, when I was trying to check the MAPI connection, I kept entering the Exchange 2000 server where the BESAdmin mailbox was, but it didnt find it at all ( wouldnt underline the profile ) so I entered the new Exchange 2007 server name, fixed

OK, now I still only had one way Calendar sync, so I moved my mailbox to the Exchange 2007 server (from the Exchnage 2000 server ) , ALL FIXED

Thanks
Michael Hutchesson
The Cancer Council SA