I am putting out a website with a tool to fix winsock and winsock2 files on a computer. If your computer all the sudden looses connectivity or stops functioning the way it used to, you may have a network issue. This tool winsockXPfix.exe http://www.iup.edu/house/resnet/winfix.shtm
will reset the tcp/ip settings that may have been changed and caused your network to malfunction. Just go to the site i mentioned earlier and follow the directions.. if you had a problem with connectivity it will probably be fixed now after a reboot.
Hope this helps with some of the newer people that can't seem to get their network up and going.