AWWW trying to hook pc up to TV with S-video all morning, wont work :(

Right now i hav a PC with vista and nVidia graphics card. with two monitors, i use Ultramon to use hav a taskbar on both monitors.

i connected a S-video cord from the back of my pc (the tv-tuner area) to the back on my TV. its a JVC tv, probably 3-5 years old. I dont want audio, i just want the visual to work on the tv

how do i get it to work?

thank you