Rails - Jun 2011 - uninitialized class variable @@env in OCI8

Can anyone help me with the uninitialized class variable @@env in OCI8
error raised in my  app\views\xxxx index.html.erb file

Thanks in advance

Below is the code and the result of bundle show.  I am using Windows 7

<h1>Listing comics</h1>

<table>
  <tr>
    <th>Title</th>
    <th>Issue</th>
    <th>Publisher</th>
    <th></th>
    <th></th>
    <th></th>
  </tr>

<% @comics.each do |comic| %>
  <tr>
    <td><%= comic.title %></td>
    <td><%= comic.issue %></td>
    <td><%= comic.publisher %></td>
    <td><%= link_to ''Show'', comic %></td>
    <td><%= link_to ''Edit'', edit_comic_path(comic)
%></td>
    <td><%= link_to ''Destroy'', comic, :confirm =>
''Are you
sure?'', :method => :delete %></td>
  </tr>
<% end %>
</table>

Gems included by the bundle
  * abstract (1.0.0)
  * actionmailer (3.0.8)
  * actionpack (3.0.8)
  * activemodel (3.0.8)
  * activerecord (3.0.8)
  * activeresource (3.0.8)
  * activesupport (3.0.8)
  * arel (2.0.10)
  * builder (2.1.2)
  * bundler (1.0.15)
  * erubis (2.6.6)
  * i18n (0.5.0)
  * mail (2.2.19)
  * mime-types (1.16)
  * polyglot (0.3.1)
  * rack (1.2.3)
  * rack-mount (0.6.14)
  * rack-test (0.5.7)
  * rails (3.0.8)
  * railties (3.0.8)
  * rake (0.9.2)
  * ruby-oci8 (2.0.6)
  * thor (0.14.6)
  * treetop (1.4.9)
  * tzinfo (0.3.28)

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Can someone help me with this error?

Started GET "/comics" for 3.134.140.40 at 2011-06-16 09:33:12 -0400
  Processing by ComicsController#index as HTML
  ←[1m←[35mComic Load (2.0ms)←[0m  SELECT comics.* FROM comics
Rendered comics/index.html.erb within layouts/application (1.0ms)
Completed 500 Internal Server Error in 25ms

ActionView::Template::Error (uninitialized class variable @@env in
OCI8):
    12:
    13: <% @comics.each do |comic| %>
    14:   <tr>
    15:     <td><%= comic.title %></td>
    16:     <td><%= comic.issue %></td>
    17:     <td><%= comic.publisher %></td>
    18:     <td><%= link_to ''Show'', comic
%></td>
  app/views/comics/index.html.erb:15:in `block in
_app_views_comics_index_html_erb__444977452_38484516__909189289''
  app/views/comics/index.html.erb:13:in `each''
  app/views/comics/index.html.erb:13:in
`_app_views_comics_index_html_erb__444977452_38484516__909189289''
  app/controllers/comics_controller.rb:7:in `index''

Rendered D:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.8/lib/
action_dispatch/middleware/templates/rescues/_trace.erb (1.0ms)
Rendered D:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.8/lib/
action_dispatch/middleware/templates/rescues/_request_and_response.erb
(95.1ms)
Rendered D:/Ruby192/lib/ruby/gems/1.9.1/gems/actionpack-3.0.8/lib/
action_dispatch/middleware/templates/rescues/template_error.erb within
rescues/layout (145.1ms

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