Problems syncing outlook mail with exchange account

I have a new mini mac and just downloaded Microsoft Office.  I downloaded connected Outlook to my exchange account with my business office.  The first day, all mail was downloaded and was working great.  The next day, my sent, junk and deleted folders were updated but not my Inbox.  It has not downloaded any mail from my inbox from 2 days ago but it shows all of my emails I sent earlier today from my business office.  My junk folder shows emails received today and I am able to move emails received today to my nbox and that is the only mail message in my inbox.  Whenever I open Outlook, it seems to be uploading constantly saying ... updating server.  My settings must be off.  I tried rebooting but that didn't work.  Please help.