Maybe your Gtk2 install is broken, your code gives no such error at my machine (but ofcourse it doesn't show anything either. The following shows the list at my install. 
use Gtk2 qw/-init/;
use Gtk2::SimpleList;

$main = Gtk2::Window->new('toplevel');
$list = Gtk2::SimpleList->new('test' => 'text',
    test2 => 'text');
$main->add($list);
$main->show_all;
Gtk2->main;

[download]
(that's with Gtk2, V1.122)
"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re: Gtk2 Simplelist by Joost
in thread Gtk2 Simplelist by Anonymous Monk

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