Hi to everyone. I have an Acer Aspire 5542. When I power it up the power button lights up blue and I hear the laptop fan working but the screen remains black. The only thing that happens is that the blue led (which is on the right side of the touchpad) lights steady and the amber led blinks at a steady rhythm. I connected my laptop to an external monitor but nothing happened. It seems that the laptop is "dead". Can you help me identify the problem? I personally believe that motherboard is the main "suspect" for this problem but I 'm not sure. Thanks in advance for your replies!