[header] How to improve image quality on an lcd monitor [title] Verify that your video card and lcd monitor have dvi connectors. [step] It is typically a white rectangular connector with holes for pins and a thin slot. [title] Buy a dvi male-to-male connector from your local electronics store. 
[step] Typically 3 to 6 feet (0.9 to 1.8 m) long will do. ( the dvi male-to-female connector is just to extend an existing cable).