I have a Toshiba Satellite laptop (model L500 - 02H) that doesn't turn on when I press the power button. I bought a new battery, put it in the laptop, and let it charge for 24hrs (well theoretically at least - if the laptop is plugged into the wall through the A/C and the battery is inside, will the battery charge even though the computer is dead?). When the A/C cable is not plugged in, there are no lights lit up, and when I plug it in, the 2 green lights light up. I tried running the laptop where there is no battery inside, but the A/C is connected & plugged into the wall, but the laptop remains dead. I did this using different power outlets, all with the same result. I tried suggestions that people put up fr other people's posts, and none of them worked, like: holding the fn key, pressing all keys on the keyboard, taking out the battery & A/C then holding the power button for 1 minute then putting everything back in, etc. What can I do at this point? Is my computer dead for good?