My windows live mesenger wont let me talk or have a conversation?

:( i recently downloaded the new msn (windows live) and it wont let me talk to any one or if they try and talk to me a warning comes up '' you are unable to start a conversation with ???????" i want to be able to talk to my school friends and i cant. help

My windows live mesenger wont let me talk or have a conversation?
Like I've said to many people on here, the best thing to do is to contact the Windows Live support staff.


I've included the link below


Richard (giloi2007)