我開唔到MSN

i also have this problem before...i think u can try to uninstall the msn9.0 then install it again. Maybe the first time u install it will have problem and can't install it...but try few more times and it will be ok...i also try this method and solve the problem finally.The records (like your friends )will not be affect or delete.
But if u had download the MSN PLUS and it will be affect.Your PLUS maybe can't work and u should uninstall it again.