SPUG: GIFgraph question

[wings x]

Dear SPUGers,

I want to draw a gif using the following code:

use GIFgraph::lines;
my @LANG = sort qw(java perl vc vb);
my @plotdata = (
    [ "Oct", "Nov", "Dec" ],
    [ 1 , 2, 3 ],
);

my $graph = GIFgraph::lines->new(640,480);
$graph->set(
   x_label_vertical => 1,
   title => "number for each month"
);
$graph->set_legend(@RANKS);
$graph->plot_to_fig("c:/out.gif", \@plotdata);

but I keep getting the error message:
Can't locate object method "gif" via package
"GD::Image" at d:/perl/site/lib/GIFgraph/axestype.pm
line 119

I have GD version 1.25 and GIFgraph veresion 2.6

Where am I wrong?

Thanks,
wings

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