SQL print statements in a stored proc

Hi,

I am connecting to SQL Server using ODBC and executing a stored
proc. Its well known that select output and print / dbcc outputs use
different channels. To see the SQL Print output, one has to repoint
the odbc_err_handler to a custom error handler and the sql Print
outputs will be seen when the script is run. I have this script which
works fine:

use strict;

use DBI;
my $data_source = q/dbi:ODBC:Server_XYZ/;
my $user = q/usr/;
my $password = q/usr_ps/;
my $dbh = DBI->connect($data_source, $user, $password)
or die "Can't connect to $data_source: $DBI::errstr";

# Catch and display status messages with this error handler.
sub err_handler {
my ($sqlstate, $msg, $nativeerr) = @_;
# Strip out all of the driver ID stuff
$msg =~ s/^(\[[\w\s:]*\])+//;
print $msg;
print "===> state: $sqlstate msg: $msg nativeerr: $nativeerr\n";
return 0;
}

$dbh->{odbc_err_handler} = \&err_handler;

$dbh->{odbc_exec_direct} = 1;

$dbh->do("use Scratch");

my $sql = q/create proc p_print_messages as
print 'Inside stored proc'
select 1
print 'Exiting stored proc'
/;

$dbh->do($sql);
my $sth = $dbh->prepare("{ call p_print_messages }");
$sth->execute;
do {
while (my @row = $sth->fetchrow_array) {
if ($row[0] eq 1) {
print "This is the SELECT output\n";
}
}
} while ($sth->{odbc_more_results});

$dbh->do(q/drop procedure p_print_messages /);

$dbh->disconnect;

This works fine. I can see both the print outputs. But If I remove the
select statement in the stored proc, it outputs only the first print
statement. When there are multiple print statement without intervening
select statements, it prints only the first print statement. What
gives?
Actually, when there are multiple print statements together without
any select statement, it outputs the first print output and then I get
this error:
this is the end===> state: 01000 msg: this is the end nativeerr: 0
DBD::ODBC::st fetchrow_array failed: (DBD: no select statement
currently executi
ng err=-1) at test_db.pl line 41.
Function sequence error===> state: HY010 msg: Function sequence
error nativeer
r: 0
Describe failed during DBI::st=HASH(0x1a657a0)-
>FETCH(odbc_more_results,0) at te
st_db.pl line 40.

Any ideas ?

thx