hi all, my script gives the " premature end of script headers " error in server log . i have checked every possible reason as such. the script is not dos formatted , no warnings or error other than end of script headers. dont know where to look . script runs fine on commandline and the location of perl interpreter is correct. here's the script see if you can make out something of it.

#!/user/bin/perl -w

BEGIN {
    $|=1;
    print "Content-type: text/html\n\n";
    use CGI::Carp('fatalsToBrowser');
}


use Fcntl;

# find the keyword in gutenberg.txt
#@gut_results;
@gutenbergr = (1..56522);
array_shuffle (\@gutenbergr);

$filename = 'gutenberg.txt';
open (GUT, "< /home/sid/kwicionary/$filename") or die "Can't open $fil
+ename for reading: $!";
$path = "/home/sid/kwicionary/";
$indexname = "$filename.index";

sysopen(IDX,$indexname, O_CREAT|O_RDWR) or die "Can't open $indexname 
+for read/write:$!";
build_index(*GUT, *IDX) if -z $indexname;

$key = $FORM{'search'};
GUT:foreach (@gutenbergr){
print "$#gut_results \n";
$limit = 100;
$line_number = $_;
$line = line_with_index(*GUT,*IDX,$line_number);
if ($key =~ /\*/){
               # $key = substr($key,0,(length($key) -1));
                @word = split(' ',$line);
                foreach (@word){
                if ($_ =~ /$key/){
                push (@gut_results , $_);
                if ($#gut_results == 100){last GUT;}
                        }
                }
        }

        else {
                @word = split(' ',$line);
                foreach (@word){
                if ($_ =~ /^$key$/){
                push (@gut_results , $_);
                if ($#gut_results == 100){last GUT;}
                #print  "matched gutenberg '$_' \n";
                  }
                }
        }

undef  @word;
if ($#gut_results eq $limit){last GUT;}
}
undef @gutenbergr;
[download]

all i get in server error log is

 Premature end of script headers: search.cgi
(2)No such file or directory: exec of '/var/www/cgi-bin/authenticate/s
+earch.cgi' failed
[download]

also, cannot understand which file the server could not find. I am including none. can somebody help??