In order to configure TCP/IP, you must install and enable a network adapter card.......??

I own a Dell Latitude D400 with a Dothan 755.

 

I have :

Conexant D480 MDC V.9x Modem

1394 Net Adapter

Bluetooth LAN Access Server Driver

Broadcom 570x Gigabit Integrated Controller

Intel (R) PRO / Wireless LAN 2100 3A Mini PCI Adapter

 

Initially, I had no problems configuring my IP address

by changing the properties of the LAN under network connections.

Now, whenever I try to access the properties of the Internet Protocol (TCP/IP)

for the LAN, I get the following message :

"In order to configure TCP/IP, you must install and enable a network adapter card.......??"

 

The strange thing is that I have no problem hooking up to the LAN.... or wireless....