Every time I turn on my G72-B66US laptop suddenly without any prior warning or reason it goes into the battery mode losing the power completely. I mostly prefer to access my machine with the power cable plugged in but even after taking so many precautions I have noticed that the computer looses the power as if someone has disturbed or removed the power cable completely. The only option left with me to get the laptop start again is to either remove the power cord completely then re-plug it or I have to go for using some other power cord which is the most irritating option for me. Once I can re-plug the power cable but changing the existing power cord and then using another one is a big deal for me. Guys, anyone with the same problem or at least anyone present out here with a proper solution for this problem please help.