I have a lenovo g585 laptop that runs windows 8.1 and it seems to have display issues. When I turn it off or restart it takes hours to start it back up. This time 2 days! The fan comes on, the power light and everything but the screen, just blank. I've tried the power drain and I've checked the ram stick but I have no way of knowing if that's the problem since there's only one stick and one slot. Can anyone help me?