Blurry monitor problem

[Seth Lockwood]

My monitor is a Dell Ultrasharp and my graphics card is a Evga GTX 550 Ti. My question is, if I can describe it right. When I scroll down on my monitor, there is a blurry line/small section all the way across the screen as I scroll down, but once stopped is gone. If I scroll slow enough it does not happen. How do I get this to stop, or is my graphics card need replacing. I have started to use Evga Precision to slowly overclock the card, but has not helped at all at this point.

 

[Seth Lockwood]

Would need video, and once the scrolling stops it goes away.

 

[NoOneLt]

What is Your resolution, refresh rate? Make sure it is optimal for the monitor.. And give people more detail, like monitor exact model.

 

[KevinAr18]

deleted

 

[samsung42]

Can you post screen shots? Well if not I bought a new monitor when the old one was till working fine, then 6 weeks into the samsung 24# monitor , text inside excel and all webpages goes blurry without regard to the monitor settings of brightness sharpness contrast or any resolution. Its as if every other letter is clear and the remaining ones are blurry I have tried changing the horizontal size even and have tried all resolutions.
http://i.imgur.com/ElIlL1q.png
Then I hooked up the old monitor and I have attached the image on imgur