Trouble with DBD-Pg

Hi experts,

I am trying to replace another database with PostgreSQL in an existing
CGI-Perl-script. Unfortunately the following failure message stopped my enthusiasm
right at the beginning.

install_driver(Pg) failed: Can't load
'/soft/perl/lib/site_perl/sun4-solaris/auto/DBD/Pg/Pg.so' for module DBD::Pg: ld.so.1: /soft/local/bin/perl: fatal:
libpq.so: open failed: No such file or directory!

Might this problem be due to the fact that I installed DBD-Pg 0.95 "for" a
PostgreSQL-database which was running under my private directory. The current
PostgreSQL-database (7.0.3)  the CGI-Perl-script is supposed to use runs
under another directory.

Do the Perl-%ENV-hashs have something to do with this problem?

Thanks for your help, Christoph

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