Win 7 Ult x64, Asus P6T, Intel 3.33 i975 Quad Core, 12 RAM

A warm boot results in no display. A cold boot immediately after shutdown results in no display. I have to wait several minutes.

I thought the problem was the NVIDIA GT-620 driver so I uninstalled it but the same thing happens with the generic driver.

Anyone got any ideas?

Thanks - rev