From changing PC, I found myself with a graphics card with two display port and as I had a two screen DVI and VGA, it took me to buy an additional VGA adpatateur. I found that on my HP LCD LE1901w the display sharpness on this adapter is of lesser quality than when it was plugged directly on my old VGA graphics card. I was fine tweaking display settings to limit the drag and ghosting but still there is degradation.