VGA and S-video outputs don't work

Hello,

I have a build computer that I finished assembling a few days ago. Has an ASUS motherboard with AMD Athlon processor, and also an MSI graphics card with DVI and 7-pin S-video outputs (I needed the S-video because I have a really old TV that weighs like Shaq).

Anyway, when I assembled the computer at a friend's house, we hooked up one of his monitors to the DVI output, through a DVI-to-VGA converter. Everything worked great, we installed Win7 and all the drivers, everything ran smooth.

When I took the baby home, and got an S-video-to-RCA converter, there was no output on my TV. I went and brought a monitor to hook up to the VGA output - still nothing.

Now, the computer turns on and boots. Win7 is loaded just fine as well, and I can tell that without any screen visuals, because when I hit Alt+F4 several times and then Enter, the computer shuts off.

I read several threads about this problem, tried several fixes (changing the location of the jumper on the motherboard for 20-30 seconds to reset the BIOS, unplug the power chord and press the "ON" button for 30 seconds...), but nothing worked.

Help?