Hi Spock,

(1) if you want to change the current template immediately, by code inside SOBI2 [I think that's what you are saying, when you set the session], then this can't work. That's because the template already has to be set before any of the component code is executed. So the template gets set first; then the code inside the template, the SOBI2 code and the module code are executed.

(2) Therefore, if that's what you are trying to achieve, then you may be able to achieve this effect by moving the code from SOBI2 into the MetaTemplate PHP box.

(3) You may also have more success using the Joomla methods for sessions, instead of $_SESSION. Perhaps try this instead:

To set:
$session =& JFactory::getSession();
$session->set( "template", "Blue", 'mysite'); // "mysite" is a namespace for your session variables

To retrieve:
$session =& JFactory::getSession();
$session->get( "template", "", 'mysite'); // "" is the default value


Hope that helps,
Stephen