today was one of the few times I've experienced trouble with my motorola droid. I recieved an sms and when I opened it to reply, the phone froze. when this happened, it would not shut off. therefore, I took out the battery and placed it back in to turn it back on which failed to work. it stayed on the black beginning screen before the motorola symbol appears. I then left the battery out for a while and tried putting it back in and plugging it in to turn it on, which happened to work. after I unplugged it, I recieved another sms and when I opened it to reply, it then again froze and did the same as before when I tried to turn it back on. I've tried everything to get it to turn on and it just will not. what do I do?