My office was installed yesterday and i tried to set up my outlook and the test mail went fine and delivered. latter the outlook refuses to work again saying 'the connection to microsoft exchange is unavailable. outlook must be online or connected to complete this action.' when i click ok, it will take me me to a box which says 'you must provide the name of your microsoft exchange server and mailbox above.  I used POP mail to set up the outlook and not microsoft exchange server. please advise what i should do