Blue lines on monitor

Question

A few weeks ago, a thin blue vertical line appeared on the right side of my screen, then a red line next to it. Today, another thin blue line appeared towards the middle of my screen. They don't go away, and are pretty annoying.

Any advice?
Thanks!

nklauste · Answer

I have a similar problem with my Latitude Cpi A laptop.  I get these short blue lines all throughout the screen in a type of checkerboard pattern  and I totally agree with you, they are annoying.  If anyone knows what to do to fix it please reply.  Thank you!!

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Blue lines on monitor

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