So the lines are not normal?! My screen has them pretty bad, they are not visible on dark colours but on the grey and bright screens they are everywhere! There is one really bad one on the left that became very noticible when playing Motorstorm RC, Rayman, and the Fifa demo. I see them on WipEout a little but dont see anything in Uncharted. It seems pretty common but the fact people are claiming to have screens without really grinds my gears... I really dont care about the black blotches but these lines are getting annoying! Makes me want to return my Vita but then my Vita is yet to freeze so i think i have a stable machine.