Rails - Apr 2006 - can''t get render... :collection to work ??

Hi all -

New to Rails so I''m hoping this is something obvious, but I
can''t get it
to work.  Here''s my view:

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<% @search.results.each do |r| %>
         <%= render :partial => ''result'', :locals =>
{:result => r} %>
         <%= render :partial => ''result_divider'' %>
<% end %>

<%= render :partial => ''result'', :collection =>
@search.results,
 		:spacer_template => ''result_divider'' %>
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_result.html looks like this:
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<%= result[:url] %>
----------------------------------------------------------------------

_result_divider.rhtml contains "<hr>".

If I remove the last render() call the page prints out the url field 
separated by <hr>''s just like I''d expect.  If I include
that last render()
call I get an error pointing to _result.html:

----------------------------------------------------------------------
You have a nil object when you didn''t expect it!
You might have expected an instance of Array.
The error occured while evaluating nil.[]
----------------------------------------------------------------------

What I don''t understand is why the first works, but not the second
since
my understanding is that first each() loop is really the same thing as the 
second render() call.

???

Thanks!

-philip