Try this...open "m.facebook.com" in ur computer browser and login to ur fb account...(m.facebook.com is the facebook website formatted for mobile)....then go to messages and then send a msg to someone...and when u open that msg into ur normal facebook account u'll see dat near the msg u sent , there will be a sign of a mobile, indicating dat the msg was sent from a mobile ,,while it was still sent from a computer...lolz...u mad facebok???