My Bold (9700) was working perfectly one minute and then the next minute it started erasing everything I would type. It seems to only happen when I press certain keys. When i type a message, as soon as I type a letter it just erases that letter and then will erase everything Ive been able to type before that. I didnt drop it and theres no water damage so I dont know whats wrong with it. Anyone know whats wrong with it or how I can fix it?