Displaying a message on the page after certain action

[eluser]cinewbie81[/eluser]
Ok this is what i did :

1) replace the session.php file - get the modified one from http://dev.ellislab.com/svn/CodeIgniter/...ession.php

2) in my controller file, i load the session library

3) After certain action performed, i has something like:

Code:

$this->session->set_flashdata('msg', 'Record Added Successfully');

4) In my view file i have something like :

Code:

<div id="actionMessage">
  &lt;?php echo $this->session->flashdata('msg'); ?&gt;
</div>

There's no error... but then it didn't generate me any flash data as well ?
What did I missed ??

Do I need to set anything in config file ?