The left hand USB port on my X31A-R4005V only operates as a USB 2.0 port. When attaching a drive I get a pop up message saying the device will run faster if I plug it into a USB 3.0 port. If I plug the external drive or stick (both are USB 3.0) into the right hand port, I don't get the pop up message, and they operate at the higher speed. When I first unboxed it and powered it up it ran thru a bunch of updates from both windows and Asus, including a bios update. Any idea what I can do or check to resolve this?