I have an Acer E570G and it is maybe 1 & half years old, Today when I tried to start my laptop, it wasn't starting. The 1st led keeps glowing when I press the power button, but the 3rd led goes off after 2-3 seconds & there's no activity on the screen. Charging works proper. I tried removing the battery, holding power button for 45 secs but to no avail.. please help