SMC / D-LINK NIC cards not recognized by Vista

My frustration with Vista has already begun. It doesn't recognize my NIC card
- I have tried two different ones. First I tried a D-Link card and then I
tried an SMC (I don't know the model number of either). Both were recognized
with XP and had onboard drivers. Because I can't get online, I can't run the
vista compatability test, or windows update etc. I'm running Build 5600 RC1.

PS I have a "Ethernet Controller", in the device manager but it can't find
drivers for that either.

If I repair / diagnose my internet connection it says that I don't have a
network adapter installed.

Any suggestions?