I have an entry in my host file that addresses a server using the server
name ("Athena"). When I type this into my browser (http://athena), the
default web page for this server renders correctly (the IP in the host file
is Internet accessible). However, I have found that there is one physical
location that I visit that has given me access to their wireless internet
and when I type http://athena into my web browser it changes to
www.athena.com, which I do not want.

Does anyone know what would cause this different behavior?