Not related to your question, but do you really mean &PrintForm?

Calling a subroutine with the leading & and no arguments passes the calling sub's argument list. Since Perl passes sub arguments by reference, this can lead to some spooky action at a distance that can be very hard to debug. See perlsub for more details.

Consider this code:

my $critical_data = 'Original Value';

print "Begin: $critical_data\n";
&SubOne($critical_data);
print "End: $critical_data\n";


sub SubOne {
    print "\tSubOne Got: @_\n";
    &SubTwo;
}

sub SubTwo {
    print "\tSubTwo Got: @_\n";
    $_[0] = 'pwned!';
}

__END__
Begin: Original Value
        SubOne Got: Original Value
        SubTwo Got: Original Value
End: pwned!
[download]

Compare the result of this code:

my $critical_data = 'Original Value';

print "Begin: $critical_data\n";
SubOne($critical_data);
print "End: $critical_data\n";


sub SubOne {
    print "\tSubOne Got: @_\n";
    SubTwo();
}

sub SubTwo {
    print "\tSubTwo Got: @_\n";
    $_[0] = 'pwned!';
}
__END__
Begin: Original Value
        SubOne Got: Original Value
        SubTwo Got:
End: Original Value
[download]

Which would you rather debug?