On a managed dedicated server, with enabled Fast CGI.

Runing the test script it's printing enviroment variables etc, but it's not runing as FastCGI, see the last three lines for $IsFastCGI();

What could be wrong?

############# TEST SCRIPT from CPAN ##############
#!/usr/bin/perl
use FCGI;
use strict;


sub print_env {
my($label, $envp) = @_;
print("$label:<br>\n<pre>\n");
my @keys = sort keys(%$envp);
foreach my $key (@keys) {
print("$key=$$envp{$key}\n");
}
print("</pre><p>\n");
}

my %env;
my $req = FCGI::Request(\*STDIN, \*STDOUT, \*STDERR, \%env);

my $count = 0;
while($req->Accept() >= 0) {
print("Content-type: text/html\r\n\r\n",
"<title>FastCGI echo (Perl)</title>\n",
"<h1>FastCGI echo (Perl)</h1>\n",
"Request number ", ++$count, "<p>\n");
my $len = 0 + $env{'CONTENT_LENGTH'};
if($len == 0) {
print("No data from standard input.<p>\n");
} else {
print("Standard input:<br>\n<pre>\n");
for(my $i = 0; $i < $len; $i++) {
my $ch = getc(STDIN);
if($ch eq "") {
print("Error: Not enough bytes received ",
"on standard input<p>\n");
last;
}
print($ch);
}
print("\n</pre><p>\n");
}
print_env("Request environment", \%env);
print "More on its way ... wait a few seconds\n<BR>\n<BR>";
$req->Flush();
sleep(3);
print_env("Initial environment", \%ENV);

$req->Finish();
}

if (! $req->IsFastCGI()) {
print "FastCGI not called as FastCGI program\n";
}

########################################