i have been using yahoo for years now.. and since i upgraded to the new yahoo.. i had have some problems

so i went back to the old version of yahoo which is 7.02.120.

but recently for a month now, i was not able to see my buddies who ARE visible to me to be visible. they remained as invisible. not all my visible buddies are appearing offline.. just some.

and the thing is when they signs off.. i was able to see that they signed off because of the notification.. but if they are set as online to me.. i cannot see that they are.

help.