Your computer monitor briefly goes black for a second and then returns to normal. The power LED stays on. Everything seems fine — until it happens again 10 minutes later. Or 2 minutes. Or every 30 ...

Explore a variety of solutions, from easy tweaks to tech tips, to resolve pesky screen lines and improve your monitor experience Reviewed by Michael Barton Heine Jr Check your monitor's cables first ...

Explore simple fixes and expert tips to eliminate those frustrating vertical lines for a seamless screen experience. Try turning your monitor off and then on again to fix vertical lines on the screen.