20. I have a LAN at home, where 3 PCs use one internet connection. 2 PCs connect to the third PC using WinProxy. It always says 'Host not found' when I try to connect to the internet.

Please make sure to enter your correct "Proxy Server" address and "Port" number in the "Configuration" window and try again. If you are not sure what is your "Proxy Server", please contact your Network Administrator.