Rails - Apr 2006 - render_to_string and DoubleRender error

Hi all,

I''m trying to use render_to_string in a controller in order to make an
output
file for download, and then redirect to a "Thank you for downloading"
page.  Of
cource, this is not possible since one cannot have a "render" and
"redirect" in
the same action.  Anyone know how I can do this?

-cal