Hi Friends; While writing text, installing/removing app or doing any kind of play. My phone vibrates 2 times. Where as I am not using vibration for any event. You have also expirienced this vibration with a popup message that some application stop responding. But I didnt get that message. So that i can identify the porblem area. I guess some inside applicaiton crashes and this vibration happens. Can any one give some pointer on it? How can I fix it.