I have a Sony Ericsson VIVAS - was on Orange but opened and I'm using an O2 PAYG simcard. My problem is that my TRACK ID and FACEBOOK apps don't work. My internet is fine but when I try to use the facebook app or track ID there is nothing - I've changed the settings today to go to O2 PAYG but still nothing. Is there anything else I can do to get these working (mainly the track ID) and the traffic TV & sat nav ! I would prefer to keep my O2 sim. Any help would be appreciated. Thanks.