I have recently brought this laptop a few days back and it came with no os in it and then I installed windows 7 in it and now whenever I turn off the laptop it show these weird lines going up and down, right before the screen is goes off. I donít know what the hell is wrong with my laptop I even tried giving the output to an external monitor and it worked flawless over there. Now I guess the display cable is gone bad or the screen is gone bad but Iím not sure about that. So I want you guys to tell me what could be wrong with it or should I provide you with more information. Please also let me know the solution for this problem.