im about to go to the u.s.a for a trip and i have a at&t sim card waiting to set up to use when im over there. i have a evo 3d that runs off the GSM 850, GSM 900, GSM 1800, GSM 1900, 3G 850, 3G 2100 network bands. can anyone help me with the correct apn settings for my evo 3d so i can use the net when im over there?