We recently got a dozen blackberries at my company and a few days ago some of us stopped receiving meeting requests on our blackberries. They were working fine before, and are still working for some people. We have 8700s and some kind of software on our exchange server.

We can still see the meeting requests in the Inbox in Outlook (still unread), and the meetings show up in the Blackberry calendar, but the meeting requests do not show up at all in the Inbox on the blackberry.

Any ideas on how to fix this?