That is not : a test; a bug report; a self-contained runnable program that demonstrates your problem. Ex 
#!/usr/bin/perl --
use strict;
use warnings;

use WWW::Mechanize 1.60;


my $ua = WWW::Mechanize->new( autocheck => 1, );

#~ use URI::file;
#~ $ua->get( URI::file->new( __FILE__ )->abs(URI::file->cwd) );
$ua->get( 'file:'.__FILE__);

$ua->update_html( <<'HTML');
<html> <head> <title>  </title> </head> <body>
<form>
<select name="cargear" id="cargear">
<option value='0' >All</option>
<option value='2' >Automatic</option>
<option value='4' >No gear</option>
<option value='1' >Manual</option>
</form>

</body> </html>
HTML

print $ua->dump_all,"\n\n";
$ua->select("cargear", "Manual");
print $ua->dump_all,"\n\n";

$ua->submit;
__END__

$ perl -MDevel::ModList mechanize.select.vd.pl
GET file:mechanize.select.vd.pl
  cargear=0                      (option)   [*0/All|2/Automatic|4/No g
+ear|1/Manual]



GET file:mechanize.select.vd.pl
  cargear=1                      (option)   [:0/All|2/Automatic|4/No g
+ear|*1/Manual]



Error GETing file:mechanize.select.vd.pl?cargear=1: File `mechanize.se
+lect.vd.pl?cargear=1' does not exist at mechanize.select.vd.pl line 3
+5
AutoLoader             5.70
Carp                   1.11
Carp::Heavy
Compress::Raw::Zlib   2.024
Compress::Zlib        2.024
Config
Config_git.pl
Config_heavy.pl
Devel::ModList
DynaLoader             1.10
Encode                 2.39
Encode::Alias          2.12
Encode::Config         2.05
Encode::Encoding       2.05
Exporter               5.63
Exporter::Heavy        5.63
Fcntl                  1.06
File::Basename         2.77
File::Glob             1.06
File::GlobMapper      1.000
File::Spec             3.31
File::Spec::Unix        3.3
File::Spec::Win32       3.3
FileHandle             2.02
HTML::Entities         3.64
HTML::Form            5.829
HTML::Parser           3.64
HTML::PullParser       3.57
HTML::Tagset           3.20
HTML::TokeParser       3.57
HTTP::Config          5.815
HTTP::Cookies         5.833
HTTP::Cookies::Netscape  5.832
HTTP::Date            5.831
HTTP::Headers         5.827
HTTP::Headers::Util   5.817
HTTP::Message         5.834
HTTP::Request         5.827
HTTP::Request::Common  5.824
HTTP::Response        5.824
HTTP::Status          5.817
IO                     1.25
IO::Compress::Adapter::Deflate  2.024
IO::Compress::Base    2.024
IO::Compress::Base::Common  2.024
IO::Compress::Gzip    2.024
IO::Compress::Gzip::Constants  2.024
IO::Compress::RawDeflate  2.024
IO::Compress::Zlib::Extra  2.024
IO::File               1.14
IO::Handle             1.28
IO::Seekable            1.1
IO::Uncompress::Adapter::Inflate  2.024
IO::Uncompress::Base  2.024
IO::Uncompress::Gunzip  2.024
IO::Uncompress::RawInflate  2.024
LWP                   5.834
LWP::MediaTypes       5.822
LWP::MemberMixin
LWP::Protocol         5.829
LWP::Protocol::file
LWP::UserAgent        5.834
List::Util             1.22
Scalar::Util           1.22
SelectSaver            1.02
Storable               2.21
Symbol                 1.07
Time::Local          1.1901
URI                    1.52
URI::Escape            3.29
URI::_generic
URI::_query
URI::file              4.20
URI::file::Base
URI::file::Win32
WWW::Mechanize         1.60
XSLoader               0.10
base                   2.14
bytes                  1.03
constant               1.19
integer                1.00
overload               1.07
re                     0.09
utf8                   1.07
vars                   1.01
warnings               1.06
warnings::register     1.01

$

[download]
Obviously it works perfectly as advertised/expected for me :)

In reply to Re^7: select fields and mechanize by Anonymous Monk
in thread select fields and mechanize by Kvantum

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