When I bought my 3d Prophet DDR and Iiyama Pro 450 several months back I have terrible image quality, and I could not run any refresh rate above 70 Hz., After trying everything , I picked up a BNC monitor cable....wham!, problem solved, with the evolution of the Nvidia drivers and the BNC cable I now run my desktop at 1280x1024 @ 100Hz with very crisp text and 2D image quality. If you monitor accepts BNC and especially if you use an Nvidia card, it is the best $20 you can spend.