Hello,so i have windows messenger 4.7.0105 and when somebody msg me he gets automatcly blocked and when i press unblock it doesnt unblock! it will only unblock if i close the convo window and its then normal but if i say hi to someone and he repys like after 2 minutes he gets blocked and when i press unblock it doesnt unblock! it will only unblock if i close the convo window. here a picture
help?

