“External Monitor Support? I just bought this and couldn't figure out if it can support 2 external monitors? I only see the hdmi port and two usb 3.0 but no other ports. Not a big deal but I would like to push the display out to three display (including the Envy itself). I thought of buying the Microsoft Wireless Display Adapter but I don't really don't much knowledge on how that would work with another external monitor.”