Okay this just happened out of nowhere, I had my Wii U on while sorting out some stuff in the web browser. I then turned off my Wii U, left my gamepad on a table (it didn't get knocked off or anything like that), came back 5 minutes later, turned on my gamepad and now this has happened out of nowhere: These weird faded grey lines move around on the screen when the colour changes. The gamepad fuctions perfectly except for this weird problem. I've tried turning the gamepad on and off in hopes that it was just a weird bug, no luck. Does anyone know if this is easy to fix or is my gamepad screwed?