After initially developing and testing my small app using firefox (on ubuntu) and finding everthing to work, I tried it on IE7 on windows with Instant Rails. To my surprise a simple non-ajax form ceased to work. The submit button has no effect. Here is my ridiculously simple form view; the form partial consists of nothing more than a few label/textfield tag pairs.
Does anyone know why this would work in firefox but not in IE7?

<div id="login" class="boxed">				
  <div class="content">  
    <% form_for :game, @game, :url => {:action => 'create'} do %>
      <%= render :partial => 'form' %>
      <%= submit_tag 'Submit' %>
    <% end %>