I have had my Captivate for a couple of weeks now and love it except for one major issue. I keep dropping calls -- The back light comes on randomly and then my chin hits the end call button or other keys and I lose the call. I have had no success figuring out how to disable the backscreen from coming on during a call or if there is another solution that would work. I do not want to return the phone. Can anyone think of a solution? Thanks!