I've had this refurbished MacBook Pro for eight months. Yesterday, I noticed an approximately 1/16" horizontal, white line had appeared at the very bottom of the screen. Today, there is a thinner, green line running vertically through the right side of the screen about three inches into the screen area. I use this MacBook for digital art and 3D modeling work and these lines are already interfering with my work. The return window is closed, and the only support offered is to deal directly with Apple. I don't expect to get anywhere with that endeavor.