In the calendar, press menu, then options and type R S E T (not
reset). It will prompt you to delete the calendar for each email
address associated with your phone.
i have all my facebook bdays showing up on my calendar.
i deleted the facebook service book calander, but i am still showing these events. it looks like it is categorizing my facebook calendar as "default calendar" and my google calendar as my secondary. all i want to see is my google calendar