I am having a problem with the birthday calendar giving me wrong birthdates. I have the correct birthdates in the contacts for 3 people, but on the calendar they are all listed on Dec 13 as an all day event from Dec 13 2010 to Dec 12 2010. It is only affecting these 3 birthdays. I have tried deleting the contacts and then reinstalling after a sync but no luck. Does anyone have any ideas?