I started up my acer laptop and the display screen doesn't show, all it shows is a black screen, I have tried many times to turn off the pc and turn it on again, nothing...now I am refreshing my pc hoping it Will put the display screen back up. I have a screwdriver but it is not the roght size for me to unscrew the back and take out the battery.. I really don't like how the updates mess with the computer, it has done it on Dell as well.