I have an Appointment item on my calendar with a Recurrence pattern as follows: Daily, for 3 occurrences. When the user changes the Start/End times of one by dragging the mouse, I want them all to change accordingly. I am using the Calendar's ItemModified event handler to do this with the following code:

appt.Recurrence.Master.StartTime = appt.StartTime
       appt.Recurrence.Master.EndTime = appt.EndTime

This all LOOKS fine. But when I get done, the item I resized has a RecurrenceState of Exception. I want it to revert to just 'regular' Occurrence, like the other items. What is the best way to do this?