I have a Blackebrry 8707g running on a BES setup.

Connected to my Exchnage Mailbox.

All is set up to wirless sync (messages, emails, contacts and calendar) and works 100%.

Calendar syncs perfectly with Outlook until an appointment or meeting is rescheduled in Outlook, the changed in time is not reflected on the Blaclberry, it stays booked at its original time.

Any help of this would be much appreciated.

We're having the EXACT same issue.

I am not sure if it has 'always' been that way or just recently began happening, but we've been in place with BES for about 2 years and it is only in the last 1 month or so that we've noticed this. But it seems to be happening to many users (myself included)

Anyone have any ideas?

I would try to resend the service books on BES and regenarate the encryption key, that sometimes solves the problem.

Yeah, we had thought that. I did that. Reproved a users device. Even did a complete device swap, but the issue persists...