He never enabled SLI, the 975 chipset doesn't support it.
I'm confused. Are you trying to
he wants each of the monitors to show the same display.
i can't get all the 4 monitors to work as one giant monitor .
To get them all to show the same thing, you need to have one primary, and have the other three in clone mode. If you want all four to be used to show one giant image, I'm not sure how that works.