Bought a Surface Book with performance base a few months ago. Really like the machine, however I used it on a train and afterwards noticed the screen is a little loose from the base and makes a clicking noise. There also seems to be a small misalignment with the base on the left side. I am thinking the vibrations on the train caused the 'grip' in the screen where it attaches to the base to come loose or move. Still works fine and can pick up computer by screen and no problem there. Has anyone else had this problem and how easy is it to get fixed.? Thanks.