So I bought an PC/LAPTOP VGA SVGA TO S-Video 3 RCA Composite AV TV Out Converter Adapter Cable
to play my GameCube on my Monitor but I can figure out how to Switch it? This is where I got the Cable. http://www.ebay.com/itm/351233132129?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
How to hook up the Gamecube to the Desktop
nintendo-gamecube
Best Answer
The cable you bought it meant to work in the other direction. It's supposed to convert a VGA video signal output from a PC into composite (or S-Video) video output that you can connect to a TV. In other words it would allow you to connect your desktop PC to a TV.
You need a converter that will convert composite video (or maybe S-Video if you have an S-Video cable for your GameCube) to VGA, HDMI or DVI depending on what inputs your monitor has available.