have 3 19 inch monitors and trying to run the as an extended desktop. have one hooked up with hdmi to my 6570, one with vga also to 6570 and on with vga to motherboard which has A8 3870k. the one connected to motherboard onlycomes on during bios and start up otherwise it says no signal. what can i do to change this? how can i have a 3 monitor set up?