I have an old Xbox (not 360) connected to my Projector by going from xbox to component cables and then to a component-vga cable. This goes through a 4 port VGA selector (monoprice) and works perfectly.
So, I assumed I could do the same thing with my Wii, bought the "HD" cable from monoprice, and NADA...no signal whatsoever when going through the same setup. I know it was sending some signal as I could hook up the RCA input on the PJ to the green component.
I sent the cable back, but still don't know what's wrong. The PJ is a Sharp X10. Is the Wii just not sending a strong enough signal or is it the RGB vs. the other color mapping issue?
I did set the wii to 480p.