s-video is not working?

Hello all...
After searching forum i came up with question that it's disturbing me 2 weeks.
I've connected S-video to my TV tru RCA jack, I've changed all resolution possible and all i get is this picture.
http://img135.echo.cx/img135/1373/dscn344113ix.th.jpg]

it's not working even while PS is booting and nether at 400x300 in X-windows.
My graphic cart is Gforce4 MX 4000 (AGP), I've downloaded latest nvidia drivers.

If you have ANY idea how to fix this... i would really appreciate.