What happened to my monitor?

I was looking at some pics, and suddenly the display colors changed. It's like, the color red vanished somehow, now the display is blue + green. I tried to adjust it, but something's clearily wrong with it. It goes back the way it was from time to time, after a few secs it changes again 😖
What's wrong with it?

Originally posted by s|m
I was looking at some pics, and suddenly the display colors changed. It's like, the color red vanished somehow, now the display is blue + green. I tried to adjust it, but something's clearily wrong with it. It goes back the way it was from time to time, after a few secs it changes again 😖
What's wrong with it?

Fixed. It was the cable connecting the monitor to the computer 😉

~wickerman~