I've had my Epic since it's launch date. Recently for the past 2 weeks my phone is making a random cracking or popping noise from the headset speaker that you would have your ear on when using the phone. Sometimes it goes away but comes back or stays on until I reboot my phone. What is causing this noise and how do I get rid of it? Whatever it is it is annoying and I'm afraid it's causing my battery to drain faster as I have noticed a difference in battery life since this has started.