I've been given one of these that is dead. When you press the power button the power light flashes green once and that's it. No fans, no disk, no screen, nothing. With a charger plugged in the battery light shows green i.e. it thinks the battery is fully charged. Checked the battery with a meter and it looks good. I guess it's either a power supply fault or something dragging one of the power rails down. I'd like to get it going, but although I've built and repaired lots of desktops I lack experience with laptops. Any advice would be welcome.