Am using a new MacBook Pro with OS X v.10.8.4, Outlook v. 14.3.6. I imported all my mail, contacts and calendar as a pst file from my old PC to the Outlook on Mac, and installed all available updates of Outlook for Mac. 

When I click Tools > Accounts, the 'Add an Account' window does not show a green button (only red and yellow) and appears to be disabled - I cannot add an account. If I click on the + sign, Outlook freezes.

Any suggestions?