It probably means the drivers for this are not installed. Do you have an add-on NIC or is it part of the motherboard? If it is part of the motherboard, some more searching is involved. If it is an add-on then find out the make and model. Then go to the manufacturer's site to get the driver.
Belarc Advisor may be able to tell you the make and model if you cannot find it.
Hi, I recently reinstalled Windows XP on my system. Once done, I realised I had no motherboard CD. I managed to download most of the drivers but the Ethernet Network Controller still has a big yellow question mark next to it in Device manager. Is this a problem? What do I have to do to resolve this issue? I've got a ASUSTek Motherboard, with an AMD Athlon(tm) dual core processor. Someone please help me with this....