To track broken appointments, you must break them in the appointment book. Rescheduling these and all patients with unscheduled appointments is flawed. When you go to a new day in the Appointment Book and choose a patient and a time, Dentrix asks if you'd like to view the patient's appointment list (when they have unscheduled appointments). You say yes, of course, but you cannot drag the appointment out of that list (window) onto the appointment slot (like you can when viewing the Appointment List module window). Even though you have selected an operatory, date, and time, Dentrix doesn't recognize it, forcing you to choose all three parameters again. This is inefficient and seems solvable within the current code.