Completely sucked in to this game. Just now, I was opening some of my chests and a yellow line appeared vertically down my screen. It's positioning is about 1/3 from the right side of my screen. I opened a browser with the game running and it remained. I quit out of the game completely and it stayed there for a few seconds and then disappeared. Upon reloading the game it came back as soon as I got to the title screen. Any idea what this is? I'm not sure I love the game that much to put up with it.