well that error could mean a few things, network cable bad>cable bad connection.
>corrupt drivers for your network card
>dsl modem is acting up (do you use a router?)
>router acting up (if you had one)
the error means fro some reason, your network card is not ready to request a dhcp address. so either it cant because it is not working properly(see above) or because it has no physical path to get one (cable, see above)
i would first try maybe a "winsock fix" available here,>>> http://www.snapfiles.com/get/winsockxpfix.html
if that dosent work, uninstall and re-install the drivers for the network card. if not, try another cat 5 cable.
post back to let us know how u r doing