Does the rest of your system work properly ?
CAUSE
This problem may occur if any one or more of the following conditions is true:
• Internet Explorer connection settings are incorrect.
• An incorrect entry exists in a Hosts file.
• The Winsock.dll, Wsock32.dll, or Wsock.vxd file is missing or
damaged.
• There are multiple copies of the Winsock.dll, Wsock32.dll, or Wsock.vxd file, or one of these files is in the wrong folder.
• TCP/IP is not installed or is not functioning correctly.
• The WinSock2 registry key is damaged.
• The Internet Connection Sharing installation is damaged or is not
functioning.
• The Rnr20.dll file is missing or damaged or the "Library Path" value in the following registry key is missing or contains the wrong location:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\WinSock2\ Parameters\NameSpace_Catalog5\Catalog_Entries\000000000001
• If you are using America Online (AOL) or CompuServe, there may be parental control restrictions applied to the account.
• Incorrectly configured or non-functioning firewall or proxy software.
Note When you try to view Web pages in Internet Explorer after you install MSN (Microsoft Network) 5.1, you may have similar symptoms.