I have a Macbook air and use MS Office 2011.  I a using outlook through Exchange and also use via iPhone and Desktop PC at work.  Lately, I am constantly getting my outlook to show (Sync pending for this folder) and it will not stop.  When I click on it, it constantly flashes (Inbox Downloading attachments) but looks like it is having a seizure.  It WILL NOT STOP and it is KILLING my battery.  HELP!!!!!