If you have repeating iCal events that are dated prior to January 1, 1980 (1980-01-01), the events may not sync with some Symbian OS-based phones when using iSync 2.0 or later. In addition, if you are using iSync version 2.0, these events may cause the iSync Agent application on your phone to unexpectedly quit.
Such events may include birthdays that you created in Address Book that got added to iCal. For example, if you create a repeating iCal event that's dated "May 5, 1975" and titled "Day 1: I am born," the event may not show up on your phone after the sync is complete, or iSync Agent may unexpectedly quit when you try to sync that event to your phone.
To prevent iSync Agent from unexpectedly quitting, update iSync 2.0 to version 2.1 or later (use Software Update or download the update from Apple Downloads).
To ensure that your events get synced to your phone, make sure that all repeating events you want to synchronize are dated January 1, 1980 or later.
Symbian OS-based phones
Symbian OS-based phones include the Sony Ericsson P800 and P900, Nokia 3600, Nokia 3620, Nokia 3650, Nokia 3660, Nokia 6600, Nokia 7650, and Nokia N-Gage.
If you're not sure what type of OS your phone uses, check the documentation that came with it.
Tip: If iSync asked you to install the iSync Agent application on your phone when you added it to iSync the first time, your phone is Symbian OS-based.
Important: Information about products not manufactured by Apple is provided for information purposes only, and does not constitute Apple's recommendation or endorsement. Please contact the vendor for additional information.