I have never used HDMI cables before so i have no idea on how to make it work. I am using DVI and connceted it with sony bravia , can anybody help me how to make hdmi work with my setup ? I tried connecting hdmi cable on my hd 5750 card and other part of it to my lcd screen but nothing work , i even changed my tv option to hdmi but no screen display at all . Can anybody guide me on this ?