Hi there, i am having a strange issue where my second GPU is showing up in device manager as a 'co-processor' and not as a display adapter, it is an nvidia 9500gt 1gb, and my primary card is a radeon HD4890 1gb. i have ran both a 7600gs and a 7500le so i know i can run an nvidia card and an amd card togeather, i just need to make it work :S this hasn't happened before and drivers will not install
What is the purpose of the 2nd card? If it is simply there to drive extra monitors on the desktop, you can use both Nvidia and AMD together as long as you are using Win XP or Win 7, Vista won't allow it. Through a driver hack, it is also possible to use an AMD as the main graphics card and an Nvidia PhysX card, but your 9500 isn't good enough to be used that way.