Hi I am from Taiwan. My English is pretty bad so please cope with my horrible English.
I run Windows XP
Whenever I add a contact, my friend does not see the add-contact notification and if my friend adds me, I cannot see the add-contact notification.. Also, some of my contacts that I've added after July are all gone. However, if I log onto a web messenger (Ebuddy, Meebo, etc) I can add and accept contacts and all of my previous contacts are back. I'm quite disappointed of the new Windows Live Messenger for this reason.