I use Window live messenger + Messenger Plus, some of my fds said i'm on offline status but actually i'm online , i also didn't c them online 2, then i try to click others that they can receive my message & can reply without any problem, but i can't c his online display pic, but they can c me. also can't invite them for cam 2. & upper of the message board is saying : not in my contact list, tried to click once as my contact list. but not work.
is my setting got problem or my computer ? please tell me with thanks.

have a read of CookieRevised's Solution to Contact's Problem and then if that doesn't help, then we'll see what we can come up with.