Rails - Apr 2006 - Gruff on Windows

Has anyone achieved a stable deployment of Gruff with Rmagick on Windows?
I''ve been playing around with this on Instant Rails and after
installing the
RMagick win 32 gem (local gem install as per instructions on web) and then
Gruff on top of that. I did a test controller method that rendered the fruit
pie chart as per the examples on the gruff site. This worked. However, when
I refreshed the page again my whole SCGI session crashed spectacularly -
unable to compile *any* pages etc.

Here is the reference code in question:

      require ''RMagick''
      require ''gruff''
      g = Gruff::Line.new
      g.title = "My Graph"
      g.data("Apples", [1, 2, 3, 4, 4, 3])
      g.data("Oranges", [4, 8, 7, 9, 8, 9])
      g.data("Watermelon", [2, 3, 1, 5, 6, 8])
      g.data("Peaches", [9, 9, 10, 8, 7, 9])
      g.labels = {0 => ''2003'', 2 =>
''2004'', 4 => ''2005''}
      send_data(g.to_blob,
            :disposition => ''inline'',
            :type => ''image/png'',
            :filename => "chart.png")

Firstly, does this code look right for a controller method? Secondly, should
this work at all on Windows? In a separate rhtml page i had a simple <img
src> tag that references this controller method.

Thanks for any help...

Sean.
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