chrissy Ziplon

hello I have 3 avatars one for sl work one for testing things and one for exploring in peace my 2 spare ones have voice and have the little silver ball above there heads but my main ava chrissy ziplon has no little silver ball above and have no voice but all the setting are the same and its the same on all computes and viewers and I have voice enabled please hep me I have tried every thing re installed and still the same thanks