Dvd Screen Grab Why Does Screen Grab Move The Image?

Why does screen grab move the image? - dvd screen grab

Do I have to take pictures of a movie on my PC. Every time I print on the screen and copy the table, something strange is happening. The image remains at the same spot, and if I move the application window to the appearance of the image hovers over adjust.

Everything you need to do is capture an image and DVD software grave me a black screen.

Help !!!!!!!!!!!!!!!!