Windows mail() problem with newlines

I have found what looks to be a problem with the php mail() function and string in the message body with \n newlines in them. using the following piece of code to test <?php $msg = "Hello\nWorld"; $to = "email address removed"; $subj = "Testing 1 2 3 ..."; $s = mail($to, $subj, $msg); print "Res: $s"; ?> generates the following output Warning: Server Error in d:\apache\htdocs\mailtest.php on line 8 Res: If I change $msg to $msg = "Hello World"; the message goes through fine and the only output is "Res: 1" as it should be. Has anyone else run into this and know a solution, or can atleast verify it. I've seen it on 2 different windows 2000 machines running the same versions of php and apache, as well as connecting to 2 different smtp servers. Environment Window 2000 Apache 1.3.27 PHP 4.2.3 Thanks Don