Has anyone experienced highly sensitive phone screen. I have had difficulty from day one ( may 2010) with screen sensitivity. During calls if the screen barely touches my face, ear, hair, etc. the screen goes to lock or some other location and the person on the other line can not hear me. When I realize what has happened I have to rapidly try to get back to the call screen before the other person hangs up. This is very frustrating. The only way I have found to eliminate this problem is to only use a blue tooth device. This is not always convenient.