Today I updated my iPhone software. Once complete, I sync'ed the phone. The phone then populated my Entourage calendar with duplicate calendar events (apparently anything that's listed as an All Day event got duplicated). I still haven't cleaned out all the duplicates from the last time this happened and sometimes now have holidays and other All Day events listed seven times.
1. How do I stop the iPhone from doing this again in the future?
2. Is there any way to get rid of the multiple events without deleting them all by hand?