Thank you ,,,,,,, here is one more there are 3 engineers in a car, electrical, chemical, and microsoft. Suddenly the car stops by the side of the road. (The electrical engineer)- he looks electronics problem where a fault might have. (Chemical engineer)-he doesn't know much, he gueses its cause of fuel emulsified and getting blocked. (Finally microsoft engineer)-doesn't know much about saying anything comes of with a suggestion; he points to everbody "why don't we close all the windows get out, get back in, open the windows again, and may be it will work!"