perl-script vs cgi-script

Hi,

I'm relatively new to perl so bear with me please. I'm seeing a strange
behavior with perl

When I use the following config in apache

<VirtualHost *:80>
  ServerName perly
  DocumentRoot /var/www/perl/perly

  <Directory /var/www/perl/perly>
    AddHandler perl-script .pl
    PerlOptions ParseHeaders
    PerlHandler ModPerl::Registry
    PerlSendHeader On
    Options Indexes ExecCGI
    AllowOverride All
    Order allow,deny
    Allow from All
  </Directory>
</VirtualHost>

The following code
#!/usr/bin/perl -w
use strict;
use warnings;
use DBI;
use Cwd;
use CGI::Pretty qw(:standard);

my %config = (
    host     => 'localhost',
    database => 'perly',
    username => 'root',
    password => ''
);

my $dbh = DBI->connect("dbi:mysql:".$config{'database'},
$config{'username'}, $config{'password'});

print header,
start_html(-title   =>  'Please Login',
            -base   =>  'true',
            -target =>  '_blank',
            -meta   =>  {'keywords'     =>  'login',
                         'description'  =>  'This is the login screen'},
            -style  =>  {'src'=>'/styles/style1.css'} );
require("/var/www/perl/perly/login.pl");
print end_html;
print "\n";

The login.pl file gets executed only once. Upon subsequent refreshes it
dissapears.
If I have AddHandler cgi-script .pl above, the script works fine.

Can someone please help me fix this issue?

Thanks,

Roland