I'm trying to extend 2 1080 LCD monitors and 1 1080 LCD TV to my PC. The video card I'm using now is ATI Radeon HD 4300/4500 Series and its got 1 VGA 1 DVI 1 HDMI port. I was told that I'll have to purchase another video card but I'm not sure what kind I can choose from and how to set it up. Do I need the exact same card or at least same brand? I've heard that I'd have to modify the bios setting to make it work can anyone explain? thanks