I just bought a Blackberry Curve 8310. My problem is that the phone dies. It is working fine for a day or so and then it dies. I remove the battery to do a reset and it doesnt do anyting. I take out the SIM card and put it in my old phone so that I can have service. After a couple of hours to one day, the Curve is back on like it nothing happened. For the time it works, the Curve is a great phone. Has anybody else had this problem before? thanks for your help.