Hi,I recently bought a second hand asus 4870 dark knight gpu it came with no cables or vga adaptor,I would like to know a couple of things about this card the first is what adaptor is it that I need to get it to work on my vga screen as I have bought a dvi-d adaptor but this does not work .The other question is do I use the white or yellow port on the card?.At the moment im running it through the main tv with a hdmi cable should I be getting sound through the tv speakers?