Rather than reinstall perl, I'd start by trying to install the missing perl module.
It's not too hard to reinstall Perl from the original RPMS: rpm -ivh --force \ ftp://ftp.cobalt.sun.com/pub/products/raq4/RPMS/perl-5.00503-2.i386.rpm \ftp://ftp.cobalt.sun.com/pub/products/raq4/RPMS/perl-Devel-Symdump-2.00-2.i386.rpm \
ftp://ftp.cobalt.sun.com/pub/products/raq4/RPMS/perl-MD5-1.7-6.i386.rpm \ftp://ftp.cobalt.sun.com/pub/products/raq4/RPMS/perl-quota-1.2.3-1C1.i386.rpm \ ftp://ftp.cobalt.sun.com/pub/products/raq4/RPMS/perl-XML-Parser-2.26-2.i386.rpm
Sorry for the weird line wraps... you can do all that on one long line...