Problems with Perl 5.004 and Postgres

hallo,
i have a little problem with postgres 6.5. Everything is ok. Postgres
run's at the console prompt (Suse Linux 5.0),
but when i tried to get information from my Webserver i get an error
back.It's look like something is wrong with my Perl DBD:PG (vers 1.2)
drivers.
so what can i do??
please help


error message in http*error*log:
install_driver(Pg) failed: Can't load
'/usr/lib/perl5/site_perl/i586-linux/auto/DBD/Pg/Pg.so' for mo
dule DBD::Pg: File not found at
/usr/lib/perl5/i586-linux/5.004/DynaLoader.pm line 155.
at (eval 1) line 2
at ./admin/httools.pl line 109

But the file is there!!!!!
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ingo jung                       
Syscom@work GmbH
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67681 Sembach
Telefon: +49 6303 919192
Telefax: +49 6303 919199
http://www.syscom-work.de
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