Ask HN: Gmail chat invite accepting problem

hello, i am really sorry if this is not a place to ask technical questions but I googled it and could not find an answer. I have invites sent to me on gmail chat and when I click 'yes' they disappear but the contact does not show up, later when open my gmail again the invite reappears. Similar issues have raised on gmail help groups but nobody has an answer or a solution. can you please help. if you think this is wrong moderators or whoever there is can delete this post. thanks