NT4 Video

I changed the mainboard in my NT4 workstation. Everything seems to have gone fine & new drivers work, but for some reason everytime we boot, the display settings page comes up. We can do the test and hit ok, but next time its back. Any ideas? The screen looks fine – whatever resolution we set seems to work. It just keeps coming up any way. I have tried a different video card and two different mainboards. All the same. Any ideas?