ok so i have the samsung behold #1 not # 2 a day ago my screen stop working, phone turns on & off normaly, but it seems wen i try to go to my phone book or menu it dosent work, the cell is a touchscreen, i dont knoe if the screen sencor is not working or someting? but i notice wen the cell is cold it works?? cold as wen sometimes i leave it next to the frige, i dont understand?? anyways please helf if you know anithings about this.