Does anyone know if 2012 works better with Exchange appointments/calendars? Many of our clients are using Exchange, some Notes, and we are having trouble whenever an appointment is modified. .

The Original appointment is fine, but if there are any changes to the orignal appointment (and this happens a lot), there's a problem. We receive an email that the meeting was cancelled. This is causing a lot of issues for us... especially with the Executives... we recently merged with another company and they are running Exchange as well.