I've heard anecdotal evidence about the fact that certain Perl CGI scripts running fine under Netscape/Mozilla, but not on IE.

Here's the error I get, followed by the code itself:

The XML page cannot be displayed

Cannot view XML input using XSL style sheet. Please correct the error 
+and then click the Refresh button, or try again later.
Only one top level element is allowed in an XML document. Error proces
+sing resource 'http://bkup1/cgi-bin/get-sched.cgi'. Line 1, Position 
+45

<h1>NBU Backup Schedule Retrieval Tool</h1><p>Choose a backup client f
+rom the pulldown menu and push 'get my schedule' to retrieve all acti
+ve backup schedules for your chosen server</p><hr /><?xml version="1.
+0" encoding="utf-8"?>
--------------------------------------------^
[download]

The Code

#!/opt/openv/perl/bin/perl -w

use strict;
use NBUX;
use CGI;
use CGI::Carp qw/fatalsToBrowser/;

my %data;
my $sid;
my $day;
my @clients;
my %bpclients = bpclclients();

foreach (sort keys %bpclients)
{
    push @clients, $_;
}

my $query = new CGI;

print $query->header, 
        $query->h1("NBU Backup Schedule Retrieval Tool"),
        $query->p(
                'Choose a backup client from the pulldown menu and pus
+h \'get my schedule\' to retrieve all active backup schedules for you
+r chosen server'
  ), 
        $query->hr, $query->start_html( {-bgcolor=>'#CCFFCC'},'NBU Sch
+edule Getter'), $query->startform,
        $query->popup_menu(
                     -name    => 'backup client',
                     -values  => [@clients],
                     -default => ''
  ),
        $query->submit('Action', 'get my schedule'), $query->endform;

get_schedule($query->param('backup client'));
print $query->end_html;


sub get_schedule
{

    my ($client) = @_;
    my $cmd = "/opt/openv/netbackup/bin/admincmd/bppllist -byclient $c
+lient -U";

    open CMD, " $cmd |" or die "Cannot run $cmd: $@\n";

    while (<CMD>)
    {
        next if (/Default/);
        if (/Policy Name:(\s+)(.*?)$/)
        {
            $sid = "$2";
            next;
        }

        next unless (/(\s+)Daily Windows\:/ .. /(\s+)Schedule\:/);

        if (/(^\s+)(.*?day)/)
        {
            next if (/24|Week/);
            $day = $_;
            chomp $day;
            push @{$data{$sid}}, $day;
        }

    }

    foreach my $key (sort keys %data)
    {
        print $query->br, $query->b("$key starts between");
        foreach (@{$data{$key}})
        {
            print $query->pre("$_"),;
        }
        print "=======================================================
+=====";
    }
}
[download]