Hello

I have replaced my hard drive in my Dimension 4600 and installed the xp disc. After rebooting I am trying to connect to the internet. I can not connect to the internet. I have right clicked on my computer, go to properties, there are question marks all over the place on my network card. The computer can not locate my network card. The computer was connecting to the internet fine before the hard drive exchange. Another bit if info. Before I replaced the hard drive I reformatted the factory hard drive and tried to boot the XP disc and it could not locate the network card then, I reformatted again and installed Linuix. Linuix connected right to the internet. So I know it is there. I wanted to have Windows and Linix so I  got a new hard drive. So my question is how do I get the computer to find the network card that I know is there. Thanks  Greg