I use a Mac, OS X 10.4.10, MacBook Pro. All of my calendars are stored in iCal. When I go to update my iPhone (or even my iPod), the calendars do not show up in the ITUNES SYNC SCREEN. However, very old calendars do (from around 6 months). On my iPod, I was able to manually export the calendars, but cannot figure this out with the phone. Why do my calendars not sync, and how do I fix this??