I'm trying to use an image in a Wx::Grid app but can't seem to find my problem. I've posted my sample code below:

use Wx qw(:everything);

#######################################
#
package MyApp;
#
#######################################
use strict;
use vars qw(@ISA);
@ISA = qw(Wx::App);

sub OnInit {
    my($this) = @_;

    my($frame) = MyFrame->new( undef, -1, "Image Test", [-1,-1], [640,
+ 340]);

    $frame->CenterOnScreen;
    $frame->Show(1);
    $this->SetTopWindow($frame);

    return 1;
}

#######################################
#
package MyFrame;
#
#######################################
use strict;
use vars qw(@ISA);
@ISA = qw(Wx::Frame);

use Wx qw(:everything);
use Wx::Event qw(:everything);
use Wx::Grid;

Wx::InitAllImageHandlers();

sub new {

    my( $class ) = shift;
    my( $this ) = $class->SUPER::new( @_ );

    $this->{main_window} = $this;

    my $grid = Wx::Grid->new($this, -1, [ 10 , 70 ], [ 250, 250 ]);

    $grid->SetFont(Wx::Font->new(8, wxDEFAULT, wxNORMAL, wxNORMAL, 0, 
+""));
    $grid->CreateGrid(5, 5);
    $grid->SetRowLabelSize(20);

    for (0..4) {
        $grid->SetColLabelValue($_, "Col $_");
    }
    $grid->SetColLabelValue(4, "Col 5");

    my $ok_image = 'C:\\Test\\check_mark.png';
    $grid->SetCellValue( 3, 3, Wx::Bitmap->new("$ok_image", wxBITMAP_T
+YPE_ANY));

    EVT_GRID_CMD_CELL_LEFT_CLICK( $this, $grid, sub{print "Changing im
+age ...\n";});

    return $this;
}

package main;
my($app) = MyApp->new();


$app->MainLoop();
[download]

Does anyone have any idea why this isn't working?