DBD::Sybase: ct_send_data example fails

 I am trying to post data to an NTEXT field in MSSQL Server with
DBD::Sybase, using the example from the documentation.  Here is my
code:

my $sql = <<"EOF";
SELECT thenote
FROM Notes
WHERE notes_id = ?
EOF

my $sth = $dbh->prepare($sql);
$sth->execute($notes_id);
while ($sth->fetch)
{
 $sth->syb_ct_data_info('CS_GET', 1);
}

$sth->syb_ct_prepare_send;
$sth->syb_ct_data_info('CS_SET', 1,
 {total_txtlen => length $text,
  log_on_update => 1});
$sth->syb_ct_send_data($text, length $text);
$sth->syb_ct_finish_send;


This is more or less copied straight out of the docs.  Unfortunately,
when I hit the ct_send_data line, I get this error:
DBD::Sybase::st syb_ct_send_data failed: Server message number=102
severity=15 state=1 line=1 server=SQL_SERVER_TEST text=Incorrect
syntax near '0x00000000000000000000000000000000'.
Server message number=319 severity=15 state=1 line=1
server=SQL_SERVER_TEST text=Incorrect syntax near the keyword 'with'.
If this statement is a common table expression or an xmlnamespaces
clause, the previous statement must be terminated with a semicolon.


I turned on FreeTDS logging, and I see this in the logs:
write.c:134:tds_put_string converting 90 bytes of "writetext bulk
0x00000000000000000000000000000000 timestamp = 0x0000000000000000 with
log"


It would seem that I am coming up against the same error described here:
http://lists.ibiblio.org/pipermail/freetds/2005q1/018014.html
http://lists.ibiblio.org/pipermail/freetds/2005q1/018015.html
http://lists.ibiblio.org/pipermail/freetds/2005q1/018017.html

 Apparently in that discussion it was discovered that DBD::Sybase was
not setting all the values it needed to set in its call to
ct_send_data.  Has this been fixed?  Is there any workaround?  Has
anyone ever gotten the example in the documentation to work?