[ubuntu] S video flicker/black screen

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http://ubuntuforums.org – I have been trying forever to use the S video to my TV, but it refuses to work. I can see the picture on the tv, but it flickers and scrolls. It is also in black and white, but on a actual monitor everything is fine. I changed all the settings in display to see if anything works yet it refuses to. Not sure what to do at all. Really want this to work so I can finally see it on the TV. I am using Ubuntu 12.04 on a very old computer (Dell Dimension 4550 with Nvidia N17 GeForce MX 420 graphics card). I did all updates and it all works fine, just the S video out is a problem. Recently I checked t (Hardware)