Works perfectly well for me. This is what I get after I run my example (yours modified)

DON't LEAVE OUT RELEVANT INFORMATION

XML::Twig::VERSION 3.04
XML::Parser::VERSION 2.31
XML::Parser::Expat::VERSION 2.31


 ... EEEEEEEEEEEEEEEEEEEEEEEKKKKK  ...

use XML::Parser;
use XML::Parser::Expat;
use XML::Twig;

$\="\n";
print "DON't LEAVE OUT RELEVANT INFORMATION\n";
print "XML::Twig::VERSION $XML::Twig::VERSION";
print "XML::Parser::VERSION $XML::Parser::VERSION";
print "XML::Parser::Expat::VERSION $XML::Parser::Expat::VERSION\n";

my $t = XML::Twig->new( 
   twig_roots => { 
   '/node/data/field' => \&print_elt_text 
   } );
   
$t->parse( \*DATA );

sub print_elt_text { 
     my( $t, $elt ) = @_;
     print $elt->text;
     $t->purge;
}
__DATA__
<?xml version="1.0" encoding="ISO-8859-1"?>
<node id="193032" title="XML-Twig" >
<type id="115">
perlquestion</type>
<author id="961">
Anonymous Monk</author>
<data>
<field name="doctext">
 ... EEEEEEEEEEEEEEEEEEEEEEEKKKKK  ...
</field>
</data>
</node>
[download]

I suggest removing XML::Parser and XML::Twig completely and reinstalling ( something gone bad).

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