i have connected my facebook to outlook . but i cannot see any of my online friends . it says "no contacts are online" . 

and when i click on any of my facebook friends in it, it says "to send a message, turn on facebook chat" when i click on it, nothing happens . . also in people.com it shows available on -> facebook chat is turned off . . and i cant turn it on also . pls help me solve the problem . . even my windows 8 app like messenger and peple are showing "no contacts online"