A few users have written to me asking why their monitors have screens that are randomly turning yellow or green. This is a common problem with computers as they go through their life cycle.

The problem is usually caused by a loose video cable. The first thing you should do is make sure that both ends of your video cable are snug and secure. Tighten the screws on both the monitor and the computer end of the cable.

If that doesn’t work you might need a new video cable. Thankfully these do not cost much and can be bought from your local computer or electronics store. Simply replace the old cable with the new one.

If your problem is still not solved then please write to me in the comments below and we’ll see if I can help.