Your computer screen can switch from horizontal to vertical due to a variety of reasons, including installing a new program, using a presentation that makes changes ...

Rather than use separate horizontal and vertical signals, your computer sends one digital signal to your monitor to carry its image. However, you can edit this signal to rotate the picture, so that ...

If you see black or colored horizontal or vertical lines on your Lenovo, HP, Dell, etc. laptop screen or desktop monitor, the problem could be the hardware or the software. Learn how to fix such white ...