Rails - Mar 2006 - odbc adapter error with one-click-installer 1.8.4 pv3

I''m having trouble accessing a db2 database via odbc using rails. 
It''s an
external database, that I import data from.  I have placed the connection
code in my model :

   unless connected?
      establish_connection(
        :adapter => "odbc",
        :dsn => "TM_Reporting_00001",
        :username => "<name>",
        :password => "<passwd>"
      )
    end

When I call this via the concole, I get a " unknown adapter" error. 
I''ve
checked and  an odbc file is included. Can someone help me with this?

--
Best Regards,
-Larry
"Work, work, work...there is no satisfactory alternative."
            --- E.Taft Benson
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