I am trying to set up a recurring appointment for a pattern of "Occurs day 3 of every 5 months effective 10/8/2008 from 11:00 AM to 11:30 AM."

When i save and close the appointment dialog and look at the calendar, 3rd of every month is highlighted and appointment is scheduled for 3rd of every month instead of every 5 months.

Any inputs will be greatly appreciated.