Outlook 2011 phantom emails, Inbox and Junk email folder

Since I upgraded to Outlook 14.4.3(140616) I always have 2 phantom emails in my inbox, no content, nothing to delete and also 8 phantom emails in my Junk Email Folder, no content, nothing to delete. It's a problem as Outlook always shows 2 unread messages in the toolbar.

I attempted a rebuild of the Identity and this is what I got:

Step 1 of 5: Scanning…
Step 2 of 5: Verifying…
Step 3 of 5: Copying records to new database…
Step 4 of 5: Recovering data…
Your database could not be rebuilt. [-18000]

I would appreciate any advice to clear up this problem?

Thanks,

Dave