Hello, I hope you will help me. I got in my contact list some persons who log in via Mobile!Yahoo, so via their mobiles. When I am logged in and they come online I see them, but when I log out and log in again, I don't see them online anymore, just as offline. Other time when they are online via mobile and I just log in to my Yahoo account I don't see them at all. And it happens from my own computer and from the cyber-cafe. I don't understand it. Please, help me. It's urgent.