im having a problem with my new nexus 5 where occasionally after a short time of use the screen will look like it starts to almost stutter, and all the text looks out of focus almost like there are multiple layers on the screen which are badly placed ontop of each other (if you can get what im trying to say) I was wondering if there was an easy way to fix this (i cannot take a screenshot of this- blurriness in photo is on actual screen)