segfault after upgrading 1.7.2 to 2.0 - Help!

[eluser]lsalsich[/eluser]
All - I've been wrestling with this for a few days now. Searched everywhere and have tested various setting, etc. I'm out of ideas and could really use some suggestions from others, please.

I've upgraded my CI code from 1.7.2 to 2.0 following all the instructions. When I get to the point where I'm changing the first instance of

Code:

class Search extends CI_Controller{

function search() {
  parent::Controller();
  $this->load->model('msearch');
}
}

to:

Code:

class Search extends CI_Controller{

function __construct() {
  parent::__construct();
  $this->load->model('msearch');
}
}

Calling this controller causes the server to return a 324 error (blank page) and a seg fault in Apache. I've tried similar changes in other controllers with identical effects.

Any ideas what I'm doing wrong?