Forum OpenACS Q&A: Response to NN/IE page loading errors
The default settings of OpenACS have a primary server name and if
that name is not used the site will redirect to it.
It's possible that your Linux machine knows the name the server
considers to be its name while the Windows 2000 machine does not.
Watch the status bar at the bottom of IE to see what name is being
tried. Then make sure that Windows 2000 can resolve that name or
change the hostname in the nsd.tcl file to something that can be
resolved by Win2k