I have 2 video cards and 3 monitors. Earlier today, I connected my 3rd monitor. Nothing displayed on it and my other 2 screens worked GREAT. While tweaking, I modified my GeForce 8400GS
so the "Configuration" was set to "Separate X Screen" which was the only option available.
Now when I hook up the 3rd monitor I see this (ignore the laptop on the right):
The 2 screens show an NVidia logo while the 3rd screen continues to be black. Can someone explain what is going on here?