Computer saying limited or no connectivity

Hi Guys.

http://forums.windowsforum.org/index.php?showtopic=csegia

I have a HP Compact S5200UK Tower which I have just rebuilt as it is needing to be introduced to a peer to peer network of 6 computers at work.

I have loaded Windows XP onto this unit and now would like to update the computer via windows update in preparation for this.

After going to the HP website I found the original drivers and installed what I believed to be the correct network driver ;NVidia nForce MCP Neworking Controller;.
I now find that I cant get onto the internet and that I get the message ;this computer has limited or no connectivity which could effect your connection to other computers on the Network or with the ability to get on the net;.

The computer does not seem to be able to generate a proper IP address and seems to be given a 162 number which is a random temp number when your computer cannot connect to the DHCP Host.
I have tried to ping other computers and I cant.
I have pinged my Network card and got a reply which indicates that it is ok, and I have also checked in device manager and there does not seem to be any issues.

I have also been on the phone to ISP for numerous hours all to no avail as their is not a problem with their connection as I have a lap-top connecting via wireless which also works fine when I plug in the Ethernet.
Am now running out of ideas?????


DBow