Originally Posted by jletendre
I believe RIM had a technote on 3.6 and Exchange SP2. I'd update their BES to 3.6 SP7 as if I remember right that will support ExSP2 fully. Exchange 2003 SP2 processes calendar events differently then previous versions.
I'd also check what version CDO is on their exchange and BES .. they should match .. copy the one from exchange onto the BES.
The latest handheld firmware will help too.
That is right BES 3.6 SP7 support Exchange 2003 SP2. No older 3.6 release.
Only don't use the CDO from Exchange 2003 SP2 on your BES.