I sync my iphone 3g to my macbook using itunes and use iCal for all appointments etc. I've noticed that my iphone only has appointments and events from last month, this month and future months but nothing before. All the previous events have been deleted off the iphone. They are still available on iCal but won't sync. I've tried rebooting and starting over but same thing. Does anyone know how to get these back on the iphone?