ActivePerl 5,10,0,1004 [Build 1004 287188]

Eclipse version:
Version: 3.3.2
Build id: M20080221-1800

EPIC: 0.6.27
Installed by Eclipse->Help->Software Updates->Find and install...

PadWalker:
Running: ppm install PadWalker
Success, PadWalker is 1.7, Released: 2008-02-04.

I make a perl script as:
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#!/usr/bin/perl -w
use warnings;

sub total {
my(@arr)=@_;
my $result;
foreach (0..$#arr){
$result += $arr[$_];
}
return $result;
}

my @fred = qw(1 3 5 7 9);
my $fred_total = total @fred;
print "The total of \@fred is $fred_total.\n";
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Setting Eclipse->Windows->Preference->Perl EPIC->
Set "Perl Execute" to "C:\Perl\bin\perl.exe", Interpreter Type is Standard, Save all.

Create a Debug configuartoin through:Eclipse->Run->
Open Debug Dialog...->Perl Local->New a debug configuration
named "tmp_debug"->Just setting Project and File to execute.

Run a debug session of "tmp_debug", Step into, step over,
etc works well, but there is nothing in Variable View.
Anybody know Why ?
Thanks in advanced. Very Appreciate!