diff -aurp old/squirrelmail/functions/imap_messages.php new/squirrelmail/functions/imap_messages.php
--- old/squirrelmail/functions/imap_messages.php	2005-10-07 15:27:06.000000000 +0000
+++ new/squirrelmail/functions/imap_messages.php	2005-10-07 15:28:56.000000000 +0000
@@ -477,7 +477,8 @@ function parseArray($read,&$i) {
  * class/mime/Rfc822Header.php.
  */
 function parsePriority($value) {
-    $value = strtolower(array_shift(split('/\w/',trim($value))));
+    $aValue=split('/\w/',trim($sValue));
+    $value = strtolower(array_shift($aValue));
     if ( is_numeric($value) ) {
         return $value;
     }