1.       File, Options, Advanced

2.       Send/Receive... button on the right side under Send and receive

3.       Edit... (on right side) for All Accounts

4.       Check the circle for "Use the custom behavior defined below"

5.       Check all the folders desired and Check the circle for "Download complete item including            attachments", 

          Closed out all the windows with OK and/or Close, and no more error messages!

http://answers.microsoft.com/en-us/office/forum/office_2010-outlook/0x800cccd2-outlook-cannot-synchronize-subscribed/61d83332-9f2c-40e3-8d81-357490eec621