Unknown network card.
The system encountered an unknown network card during the installation process. The installation of the TCP/IP protocol stack was terminated and the system was restarted.
Verify the card type in your system. Check the hardware compatibility list to verify that the network adapter is compatible with the Microsoft TCP/IP protocol stack. If the Microsoft TCP/IP protocol stack does not support your card type, use the card vendor software to install your stack. If the Microsoft TCP/IP protocol stack supports your card, reseat the network card and check the cabling. Try reinstalling the TCP/IP protocol. If you continue getting this message, try reinstalling Windows 2000.