Interpreting a "no route matches" message

Hi, -

I am trying to make the Highslide image viewer to work with with a Rails
app and I have done everything (image tag markup, right files in right
directories etc) according to their tutorial. However when I load the
page with a highslide-marked-up image I get following error messages in
the log:

ActionController::RoutingError (No route matches
“/public/graphics/zoomin.cur” with {:method=>:get}):

Now “/public/graphics/zoomin.cur” is a valid path to an existing file.
I’m having a bit of trouble interpreting the error message because of
that; is it just Rails not knowing which REST method to use while
dealing with the path?

Many thanks,