[Resolved-Explanation] Strange blue lines in explorer, videos and games

[Azumi2]

Hi All,

Yesterday I had a weird occurrence where blue lines were appearing on the desktop, during youtube videos and on the cloud outlines of COD WW2. I'm still using a GTX 980 ti overclocked via a modded BIOS with no overclocking on afterburner.

At first I thought it was coming to the end of the graphics board's life. I switched to my living room TV and the problem stopped. Then I remembered something... My daughter had been up on the PC chair, knocking the webcam off the top of the monitor bezel that evening. Sure enough she had knocked loose the DVI cable on the back of the monitor. Plugging it back in and securing it with the screws attached completely solved the problem. 

This may seem like a "duh" post but others may come across the same issue and think they need a new video card. It's always worth checking the basics first rather than jumping to conclusions. I nearly spent 80,000 yen on a new rtx 3070 because of this issue when it was nothing but a cable all along.