Did you try wiggling the Wii-end of the cable block? Are the Wii cables and Gamecube cables both "official"?
I don't think I've ever hooked up my Wii by composite to the card, but I experienced similar colour problems with the third-party Wii component cable I use. It seemed the big block doesn't stay fully seated in the output port.
I don't think I've ever hooked up my Wii by composite to the card, but I experienced similar colour problems with the third-party Wii component cable I use. It seemed the big block doesn't stay fully seated in the output port.























