I just got my Hero from Sprint last week and I love it! But I have one small problem. When my battery drains and the phone shuts itself off (ie powers down). After I charge it up and turn the phone back on I have no service, if I try to go turn my mobile network back on it wont allow me to open the program and it forecloses on itself. The only way I am able to do ANYTHING on the phone or use it is to reset it to factory settings which causes me to lose EVERYTHING! Has anyone had this problem or know of anyway to fix it when this happens?