hello sir....i want to ask u that ,,what is the problem to my laptop, when laptop has plugged in and i open google chrome or play any game,,it goes suddenly off .. but when laptop is at battery ,it does not off.. there is one another problem ,the charger indicator light is blinking while charging,,and the charger jack is not fit in the charger hole...and goes fully overheat when touches that,,,,,,,,,, please tell me what is the problem ..