I have family overseas and i talk to them using Yahoo Messenger, but since Lion came out i found out that it supported video chatting through Yahoo. But I have a problem with iChat, whenever i talk to someone on yahoo messenger through iChat, i cannot video call them, even though that option was supposedly added to Lion. The video chat icon is greyed out. Same thing happens when someone tries to video call me. When i was using Yahoo Messenger for Mac it did the same thing under SL, so i have to use Skype or resort to booting into Windows to talk.