Just recently (this week) I feel like everytime I look at my phone I'm on the Edge network in places where I'm used to having 3G. Sometimes I'll go to Settings to turn off 3G and turn it back on and I'll get near or full 3G signal but it only lasts for a minute. Is anyone else having this issue? I live near Nashville,TN if it matters. And I'm used to having full bars of 3G since I've had my phone on release date up to earlier this week. Just thought this was kinda strange.