So my computer appears to have 2 vga's in the back but one of them seems to be connected to the mother board. Because when I plug it in the display does not detect or turn on. So I bought a Vga spillter and now both displays work but are cloned and I want to extend them. One of my displays is a tv and the other is just a regular monitor. My graphics card is a Nividia Gefore GT 620. Thanks