When I pressed the power button of the Acer laptop, it takes to a long time to load black flickering screen. The blue light below is on but not blinking. After that sequence, the Acer logo appearance time loads normally, alongside with the Windows 8 OS, they both load normally. After that, everything works fine, its just that long time to boot black screen is the problem. Any possible problems and fixes for this issue? Software or hardware issue and what can I do to fix those?