Duplicate iPhone events keep returning after numerous syncs

I made the mistake of trying to sync my iPhone calendar and contacts with my laptop via iCloud. It didn't work properly and I reversed it. However, since then when I sync my phone with my desktop via iTunes, all my calendar events prior to the end of the iCloud sync are duplicated. I've used iTunes to wipe the phone calendar then attempted to replace all calendar info on my phone with iCal on my desktop as per the Advanced sync in iTunes. The dupes return. Also, new contact entries from Address Book aren't transferring to my phone and the sync is very slow. Any ideas?

Very Common problem. I'm assuming you also own a iPhone or iPad, and are syncing it to MobileMe. It's happened to me several times, and I fixed it by doing the following. Assuming you are syncing devices with MobileMe, Mount your portables in iTunes. Select Device in left column. Select Info Tab. Deselect Sync Address, and ICal Calendars. Close up and wait for next sync. Your second group should disappear. Hope this works for you.

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