I'm not sure how to explain what I am experiencing or if anyone else came across this...but whatever app i open and work in the bottom half of the screen begins to shake the images real fast. It makes the fonts and details all blurry kinda like a vibration on the image. I took screenshots at the time it happened, but for some reason the camera doesn't pic that up in the image and each screenshot looks clear w no issues. Has anyone experienced anything like this? I've re-booted the phone 3 times by pressing the home button and lock button. Also, I've just turned it off and then back on. Nothing is fixing this bug. Any guidance is appreciated!