I'm having that problem, with the "Device cannot start" error when I try to install the wdm drivers.
I've got an MSI Geforce FX 5600 128 MB card.
And an MSI K7N2-Delta L
1 GB ram, 350 w psu.
Running XP Pro.
When I try to install the wdm drivers, I either get the exclamation thing in the device...