am having trouble getting my .pl script to talk to the CGI.

use warnings;
require LWP::UserAgent;
use HTTP::Request::Common;
my $browser = LWP::UserAgent->new();
my $url = 'http://localhost/cgi-bin/upload.cgi';
my $res=$browser->post( $url,
[file1 => ["c:/test.txt"],
file44=> ["c:\\test.txt"]],
'Content_Type'=>'form-data');
#die "URL Error: ", $res->status_line unless $res->is_success;
print $res->content;
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When it runs I get an error page saying

No files were selected for uploading.
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The error was contained in an HTML response, so I believe that the CGI and my script are talking at least this much.

The form I am working with is...

<FORM action=http://localhost/cgi-bin/upload.cgi method=post
encType=multipart/form-data><INPUT type=file name=FILE1>
<P><INPUT type=file name=FILE44>
<P><INPUT type=submit value=submit> </FORM>
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Can anyone tell me what I am missing?