Hello, I posted the same question not to long ago and did not get much help. I went thru all the older posts related to the same problem I could find and got some help. #1- if you have Facebook, you have to delete it. Avoiding the calender sync option for facebook did not help, I had to delete it all together. I also went into the service books and deleted the facebook info that was left there. I initally had the same problem, contacts and memos all syncd fine, no calender. After deleting facebook, outlook would only sync future calender entries from that day on. So I deleted everything in my future calender and then syncd them back from outlook. I hope this will help, good luck.