Help! When I unlock my screen the Dock icons become highlighted individually and cycle through non stop. I can open a screen if I hit the icon at the exact second it becomes highlighted. Once in the new screen (IE App drawer), it will cycle through the top row of apps. This is preventing me from messaging and making phone calls. My phone was working flawlessly up to an hour ago when this started. I have restarted the phone 3 times, and I haven't downloaded anything new today. I'm stumped as to what is causing this.