Always shows 0 Contacts Online

Is there anyone can help me to solve this problem??

I'm using my Asus P750 Windows Mobile Based Mobile Phone.

My phone is using: Windows Mobile 6
Windows Live for Windows Mobile, Version 10.6.0033.0600 Microsoft.

I used the build-in "Windows Live" all the time for MSN Messengers &
Emails". I had no problem using it before, but until last night it suddenly
started to shown "O Contacts Online" which when I use my laptop or the IE to
go on Messenger, I could see lots of my friends are actually online.......

I've tried to sign out and use the "sign in as a different account" thing,
and tried to delected all the groups in my contact list, but still no
success.....but when my bf tried to use his account to log in, his contact
list has no problem, he could see his friends were online.......

Please help help help!!! >,<

Thanks Thanks!!

Sweetest Mango