OK. My internet has been working fine. Now, all the sudden, I have a weird symbol for EVDO (it's a gray square with a capital "E" in it). It used to be the normal "Ev" symbol. My internet will connect and work for maybe 5 min. and then disconnect (this is teathering to my PC). Data is still connected on the phone itself but it disconnects from the PC saying "the remote party has ended this connection" but I can still use the internet on the phone. What gives???