Why crt monitors show windows in middle of screen

[thulasi74]

why crt monitors show windows in middle of screen

 

[PhilFrisbie]

Please expand your question with more details.

 

[hang-the-9]

Only if you set them not to scale and use a non-native resolution. Or there is an issue with your cable, or you are running in an odd refresh rate, or you just need to adjust the width/height of the image to expand the viewable area.