My laptop (IBM Thinkpad) was working well till about two days ago, and then yeaterday when I tried to switch it on, it would not work. I even tried using a battery instead of a power outlet (in case there was something wrong with the plug.) When I used to connect to power, an indicator that the battery was charging would flash, now nothing happens and the power switch on the Laptop does not respond. the screen remains turned off. can anyone tell me why this could be happening and how i can fix the prob (I do not mind opening the laptop.