My laptop is set to hibernate when I close the lid while unplugged. When I start it back up, the Dell logo displays as normal, and then four circles of spinning dots appear on the screen, about the same width apart across the centre of the screen. Before, when my laptop displayed this screen, there was only one circle of spinning dots directly below the Dell logo. I'm worried this might indicate something is malfunctioning. Does anyone have any suggestion of why my laptop is acting this way?