[Bioperl-l] error in Bio::Graphics print $panel->png

[Miroslava Cuperlovic-Culf]

Dear All,
I am trying to run Bio::Graphics for the first time. I think that I have 
downloaded all the software necessary but still  when I try to run just 
a simple test program:

use Bio::Graphics;
  my $panel = Bio::Graphics::Panel->new(-length => 1000,
                                        -width  => 800,
                                        -pad_left => 10,
                                        -pad_right => 10,
                                        );
  print $panel->png;


I get the error:
perl: relocation error: 
/usr/lib/perl5/site_perl/5.6.0/i386-linux/auto/GD/GD.so: undefined 
symbol: gdImagePngPtr

What could this be? Any help would be GREATLY appreciated and sorry to 
bug you all with most likely a trivial problem.
Mira


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