title: NHibernate exception: Transaction not connected, or was disconnected
body: <p>In our develop environment all the ASP.NET application works just fine. However, when I deploy the site on the test machine, on some pages I get this exception:</p>
  
  <pre><code>NHibernate.TransactionException: Transaction not connected, or was disconnected
     at NHibernate.Transaction.AdoTransaction.CheckNotZombied() in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Transaction\AdoTransaction.cs:line 406
     at NHibernate.Transaction.AdoTransaction.Rollback() in d:\CSharp\NH\NH\nhibernate\src\NHibernate\Transaction\AdoTransaction.cs:line 240
  </code></pre>
  
  <p>I have no idea on how to solve this issue. The only difference are the DB versions:
  Develop: 10.0.5500 (2008 R2, SP1, Express)
  Test: 10.0.5500 (2008, SP3)</p>
  
  <p>Does someone has an idea what is going on here?</p>