Warning: On some Windows systems, requesting a web page seems to take
a fair bit of time (20 seconds or more).  This seems to happen only on
systems where Internet Explorer is the default browser.

You will only see this warning popup at most once per KnotPlot session.

To avoid seeing this warning popup on your next KnotPlot session,
press F1 right now and then (optionally)
press F2 to visit the web page you requested.
