PHP 4 & PHP5

[eluser]Draft[/eluser]
Hello!

Our hosting provider has PHP 4.4.2.
In my local machine I have installed PHP5, and developed web site works fine, but when I uploaded it to remote, it just doesn't work. Only white screen without any error messages or notifications.
Default controller has code

Code:

<?php

class home extends Controller {

    function home()
    {
        parent::Controller();    
    }

    function index()
    {
        $this->load->view('home1');
    }    
}

View home1 is plain html.
And problem occur exactly when codeigniter trying to load this view. I think so, because when I replase it for

Code:

echo "home";

it works.

config.php is setted up.

What's wrong? Please help.