i was using handscent this morning to send a text message and my screen went black. my phone has been resetting itself about once a day so i thought that is what it was. the screen came back after thirty seconds. this happened three times. then my screen went black and hasn't come back on. if i call the phone it rings. i get message alerts audibly. is i press "x" and the power button i get a droid guy and a triangle with an exclamation point in it. now what?