3] Use the same type of ports to connect all monitors. This is one of the most common issues for this problem. If you use different ports (DVI, VGA, HDMI) to connect multiple monitors, you may ...

Because there isn't as much hardware, the laptop only weighs 2.7 pounds. Conversely, the Pro laptop clocks in at 3.4 pounds and becomes heavier when housing a more powerful chipset.