issues with imap_qprint()

Hey there, I try to decode the subjects of an email with German umlaute (öäü ...), which are encoded in in quoted printable. For Example ... the string "Gr=FC=DFen" has to be converted to "Grüßen". I tried it with a little example and it worked fine: <?php $test = imap_qprint("Gr=FC=DFen"); $handle = fopen("codetest.xml", "w"); fwrite($handle, $test); // writes "Grüßen" into the file fclose($handle); ?> But when i implement the imap_qprint function into the real script, in which i read the email header information it writes something like this: "=?ISO-8859-1?Q?Grüßen?" So it decodes right but it puts this ugly iso code info around the result. It's kinda wired because i use it exactly the way I did in the example shown above. Is there any way to avoid this or a build in function to strip that crap?? greets, Max