Are you calling SUPER?

#!perl
use strict;

package Foo;
sub Baz {
  my $self = shift;
  print "In Foo->Baz\n";
}
sub Quux {
  my $self = shift;
  print "In Foo->Quux\n";
}

package Bar;
use vars qw/@ISA/;
@ISA = qw(Foo);
sub new {
  my $class = shift;
  return bless {}, $class;
}
sub Baz {
  my $self = shift;
  print "In Bar->Baz\n";
  $self->SUPER::Baz;
}

package main;
my $snafu = Bar->new;
$snafu->Baz;
$snafu->Quux;
__END__

In Bar->Baz
In Foo->Baz
In Foo->Quux
[download]

Update:added Foo->Quux