Screen jumping and display flickering are common issues with LCD monitors, and can have a number of causes. The most common cause is a low refresh rate. Luckily, a computer’s refresh rate is simple to adjust.
In order to make changes to your refresh rate on a Windows computer, navigate to the Start menu, and Select the Control Panel. From there, select the Appearance and Personalization option, followed by the Display option. On the left hand side of the Display window, select Change Display Settings, then select Advanced Settings on the window that appears. Select the Monitor tab. Using the setting labeled Screen Refresh Rate, you will be able to access a drop down menu listing all the possible refresh rates available for your computer. The available rates vary from computer to computer, depending on the capability of the monitor. Choosing a higher refresh rate than the one currently selected can help with a jumping or flickering screen.
While most flickering issues are solved by increasing the refresh rate, there are a number of other possible causes. A flickering screen may be caused by an issue with the monitor itself. If you suspect this to be the case, try using the monitor with a different computer to see if the issue persists. A weak cable signal can also cause issues with the display. You may want to try using another cable to connect the computer to your monitor.