Building DBD::Pg

Hi,
  I'm trying to install & build DBD::Pg. against Postgres7.1
I've downloaded the latest version (0.98)
Postgres was installed via the RPMs.  (base, lib, delel, perl, docs, test
and server)
it's a redhat 6.2 based system but with perl 5.6 installed.

perl Makefile.PL runs OK
make runs OK,
but when I run make test I get the following errors.

[simon@sunshine DBD-Pg-0.98]$ make test
PERL_DL_NONLAZY=1
/usr/bin/perl -Iblib/arch -Iblib/lib -I/usr/local/lib/perl5/5.6.0/i686-linux
 -I/usr/local/lib/perl5/5.6.0 test.pl
OS: linux
Use of uninitialized value in join at test.pl line 53.
DBI->data_sources .......... not ok:
DBI->connect(dbname=template1) failed: No pg_hb at test.pl line 59
DBI->connect ............... not ok: No pg_hb at test.pl line 59.
make: *** [test_dynamic] Error 255


Can anyone give me a clue what's wrong ?

Thanks.