Hey guys, I recently imported an AT&T HTC ONE X+ from the US(I live in Australia) and when I put my Australian SIM card in there the reception bar shows up and I can make calls and texts. I can access Wi-Fi also. However my mobile data does not seem to work. When i go to settings and turn it on it just says "Disconnected". Should I just turn on Data Roaming(I don't think I will be charged for it considering I'm using an Australian SIM card in Australia?)? Is it a conflict between the AT&T software and my SIM card? Need some advice. Thanks in advance!