Does it look like a white vertical line that you will see every time you turn the page or when the background is dark like in the book cover? I had a single white line appear right at the center from top to bottom. Then days later another line appeared. After that, I can only see the upper part of the display. If it is, that is a display problem and your unit might have been dropped before. I too dropped mine though the line started appearing only about two months later.
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