Now, my computer does not come out of sleep mode or hibernation correctly. When I press the power button to bring the computer back on I only hear the disk spinning and see the power light turn on. There is no screen activity and the computer does not respond to input. If I press the power button again while the computer is in this state, it turns off as if I had held the power button for 10 seconds.
I suspect that resetting the computer to factory settings could help, but if not, what are some other solutions to this problem?