[system-traders] Can't locate GD.pm in @INC

[Ulrich Staudinger <us AT activestocks.de>]

Hi all,

i have a small lemma with gt:
[root
AT
jboss Scripts]# ./graphic.pl 13000
Can't locate GD.pm in @INC (@INC contains: .. 
/usr/lib/perl5/5.8.3/i386-linux-thread-multi /usr/lib/perl5/5.8.3 
/usr/lib/perl5/site_perl/5.8.3/i386-linux-thread-multi 
/usr/lib/perl5/site_perl/5.8.2/i386-linux-thread-multi 
/usr/lib/perl5/site_perl/5.8.1/i386-linux-thread-multi 
/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi 
/usr/lib/perl5/site_perl/5.8.3 /usr/lib/perl5/site_perl/5.8.2 
/usr/lib/perl5/site_perl/5.8.1 /usr/lib/perl5/site_perl/5.8.0 
/usr/lib/perl5/site_perl 
/usr/lib/perl5/vendor_perl/5.8.3/i386-linux-thread-multi 
/usr/lib/perl5/vendor_perl/5.8.2/i386-linux-thread-multi 
/usr/lib/perl5/vendor_perl/5.8.1/i386-linux-thread-multi 
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi 
/usr/lib/perl5/vendor_perl/5.8.3 /usr/lib/perl5/vendor_perl/5.8.2 
/usr/lib/perl5/vendor_perl/5.8.1 /usr/lib/perl5/vendor_perl/5.8.0 
/usr/lib/perl5/vendor_perl .) at ../GT/Graphics/Driver/GD.pm line 9.
BEGIN failed--compilation aborted at ../GT/Graphics/Driver/GD.pm line 9.
Compilation failed in require at (eval 5) line 1.
BEGIN failed--compilation aborted at (eval 5) line 1.
[root
AT
jboss Scripts]#

GT looks very good, but i couldn't test it fully yet ... :D
I am looking for a solution to the above error message,
many thanks in advance,
Ulrich