I have had my 256gb surface pro 2 for a couple of weeks now and have loved it. The only issue I am having, just started a few days ago. This issue occurrs more when I first wake the unit up. When I tap the screen to click or swipe to scroll, I get 5-10 of the little touch marks in a vertical line up and down the screen in relation to where I actually touched. After pecking at it several times it quits doing it every click but still does it every now and then. Is there something wrong with my unit? Has anyone else experienced this?