I have been looking for weeks on a solution to the problem of duplicate entries on my iPhone from iCal. None of them seem to apply to my set-up. I have OSX 10.6.8 and the new iPhone 4S. I have been syncing the 2 since December without a problem and now all my iPhone calendar entries are duplicated and some are in triplicate. Nothing I've tried seems to work. I was told that I need Lion in order to have iCloud and I don't have Lion. All I want to do is go back to wireless syncing of my Mac and iPhone. I'd even settle for hooking it up at this point. I'm so tired of more than one entry in my calendar and am afraid there will be no end to how many times one item shows up!
I really hope someone knows how to fix this so I don't have to return my iPhone.
I really hope someone knows how to fix this so I don't have to return my iPhone.