There may be a problem with the image card itself it may need replaced. Also under the monitor or on the monitor there should be a button or knob that can be turned to adjust picture quality and color.
How an image is formed on the tv screen
If you can get the image on your computer screen, try using Screen dash. You can then capture the image of your screen then edit the photo, save the image, or image host it.
It is called a real image. Only a real image can be projected onto a screen.
screen capture
screen capture
If an image can be formed on screen it is classified as real. Virtual images cannot be projected on an image.
When you project an image onto a screen, if it is real you can see the image on the screen, if it is virtual then you cant.
Real image
Screen Tip
Takes what you see on the screen and puts it on the paper
Real images can be obtained on the screen,whereas virtual images can't be obtained on the screen
The Dick cums on the screen making the image brighter