Hey All! My iPhone 4S is on vodafone and im at the top floor of a office. my phone is always on 2G signal or EDGE signal. and it won't default to 3G. the only way i can kick it into getting over to 3G would be to restart the phone and it will default to 3 bars of 3G signal. this is annoying because 3G signal is there i can see it. i leave it in standby for say 10minutes come back and its back on 2G signal / EDGE and i am forced to do the same thing again. my question is anyone else noticed this issue? am i alone? its so annoying!! Thanks.