Screen flickers due to object causing computer desk to vibrate.
Cause:
There is some object that is sending a vibration to the computer desk where the monitor is sitting. This will continue to occur until either the computer is moved away from the object, or the object is moved away from the computer.
Solution:
Do one of the following:
1) If able, move the object away from the monitor.
2) If unable to move the object, move the computer and components to another location.
