Hello Monks, I've been stumped by a little problem. I have a subroutine RDup ( remove duplicates )

sub RDup
{
    my @arrays = sort @_;
    my @temp = ();
    my %Seen = ();
    
    foreach my $elem(@arrays)
    {
        next if $Seen{$elem}++;
        $elem = join(" ", split " ", $elem);
        push @temp, $elem;
    }
    
    return @temp;
}
[download]

This sub takes in an array, obvisously. If I creat an array @t1 = ("z", "a", "r", "a", "a"); It sorts and removes the duplicate entries file. But I have some code that is searching for dll names and if found, pushes it on an array.

foreach $d(@dllExeLines)
{        
    if( $d =~ m/$serviceName/ )
    {
    foreach $f( split /,/, $d )
    {
       if( $f =~ /$dll/igcgxm )
       {
          push @unique, $dll;                   }
    }
    }
}

RDup(@unique);
[download]

When I pass in @unique, the duplicates are not removed. What am I doing wrong, and not understanding here in Perl. There must be a difference in what is placed on an array. I've tried everyting I can think of, but nothing works. Thanks.