Windows 10: Grey Horizontal Lines on Screen

I've been having an issue where there are multiple grey lines appearing on my monitor. I tried to fix this by updating all of my graphics drivers, restarting my computer, and even changing the Display Port cable, to no avail. The lines are less noticeable in browser windows. I discovered these lines about a month ago. I am running Windows 10 and I have an NVIDIA GeForce GTX 980 Ti graphics card. Here is a screenshot of what they look like. Please help me!

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Grey Horizontal Line

Since I upgraded my window from Windows 8 to Windows 10, there is a fine grey horizontal line at the bottom of my screen. It's there no matter what I do. It's quite annoying when watching video or movie.

One thing that is funny is that the line is there all the time. However, if I use screen cap, this line does not show on the screen cap though. Any idea?

 

Screen showing grey lines

Thank you for answering. The lines are fine grey lines - some vertical and mostly horizontal covering the entire screen. They last for several seconds but have been lasting longer each time they appear.

It is on a laptop, I have gone to device manager and found the monitor listed and updated, but it said I had the most current version of the driver. What else should I do, that has not helped?

Thanks for any help.

 

Screen showing grey lines

Screen on my laptop suddenly showing grey lines across the screen for a few seconds in Firefox browser and sometimes in mail. This is something new and suggestions? I run Windows 10 on my Dell Inspiron.

Thanks