Hi all I have a problem and hope someone can help. When i turn on my phone it gets a 3G signal then H but after a while it drops to just a G signal. When on a G signal the browser/market/facebook app etc dont work, (says check internet connection) If i tick the 2G only box then untick it I get 3G/H signal again? Also when i recieve phone calls the G/3G/H signal disappears totally (just the 3-4 bars). Once the phone settles on G signal it wont go up to 3G or H signal again without ticking 2G only then unticking? Any ideas whats wrong here?