Recently I had a 4-port USB adaptor plugged into the aforementioned USB port. While moving the laptop to another location, I dropped it and suffered only a crack in the shell on the top left corner while the 4-port adaptor took the impact for the lower half. Since then that port has stopped working. The other 2 USB ports on the right side have never worked as far as I know. I tested a thumbdrive in all ports with no response (thumbdrive works with my PC) and just out of curiosity, plugged in my tablet which indicates it's getting a charge from the ports but neither the laptop nor tablet recognizes the connection between the two. Question 1 - can the USB port on the left side be swapped out? Question 2 - Is there a driver that needs to be updated for the USB ports on the right side to get them to work? I've seen a few posts elsewhere suggesting this particular model has a driver issue with those ports.