Shoutbox

Ok, my problem is simple, yet I can't figure it out. I have a new e-mail adress, and i saved all my contacts and then imported them. Now all of these contacts sign on and off regularily, except ONE. Now this once contact is my best-friend, she always is off-line, yet she messages me, and we talk but it says that this contact is offline, i've tried to fix this problem afew times, and she says she doesnt know either.

So my problem is how do i get it so that she can be shown as online, alos i cant double click her name while she is "offline" and talk to her.

Please help, Thanks.