When I use on board graphics for my computer it works fine, but as soon as i plug in the graphics card there is no display at all on my monitor. I'm new to this so I plug in an HDMI cable in to the graphics card and nothing happens. There is a cable that comes with the graphics card that i believe is a VGA cable but it is ridiculously short. The display does not show either if I plug in my HDMI cable in to the MOBO, but as soon as the graphics card is disconnected it works fine.