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Line at the top of the screen following open window (or cursor)

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May 16, 2018
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Hi There,
I have bought a new Dell Inspiron 15 (N-7560-N2-711S, Intel Core i7 7500U Kaby Lake, 15.6" LED 1920x1080, RAM 8GB DDR4, NVIDIA GeForce 940MX 4GB). There is a strange moving line at the top of the screen. If I am moving an opened window (which is not full screen) that line is moving above that window and its colour depends on the main colour in the window. It increases/decreaces also its brightness when the window is moved closer/farther to/from the top. The lenght of the line is proportional to the window's width. I have never seen anything similar.. Might it be graphic card drivers or some windows 10 issue?
Many thanks for any ideas in advance. I do not have any external monitor to try, only the laptop screen.
Cheers,
Richard
 
My guess would be a fault with the LCD or the LCD video cable. Sorry to say that you may need to send the new laptop in for service or have it exchanged to get it resolved.
 
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