I have just installed the AMD Radeon HD 7800 Series garphics card. My old card allowed me too connect two monitors with no issue. When I installed the card the outputs were different, one was the normal VGA port that my first monitor has and that works fine and the other is what looks like an HDMI port. I have purchased HDMI to VGA SVGA HD15 Male Cable Lead.
The drivers are up to date and I'm running Windows 7 ultimate.