diff -ruN .\limesurvey-orig/admin/export_structure_quexml.php .\limesurvey-exportfix/admin/export_structure_quexml.php
--- .\limesurvey-orig/admin/export_structure_quexml.php	2010-08-19 05:43:49.000000000 +0100
+++ .\limesurvey-exportfix/admin/export_structure_quexml.php	2010-12-07 16:09:29.351673300 +0000
@@ -517,12 +517,12 @@
 
 
 $fn = "survey_$surveyid.xml";
-header("Content-Type: application/download");
+header("Content-Type: text/xml");
 header("Content-Disposition: attachment; filename=$fn");
 header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");    // Date in the past
 header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
 Header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
-header("Pragma: no-cache");                          // HTTP/1.0
+header("Pragma: public");                          // HTTP/1.0
 
 echo $dom->dump_mem(true,'UTF-8');
 exit;
diff -ruN .\limesurvey-orig/admin/export_structure_xml.php .\limesurvey-exportfix/admin/export_structure_xml.php
--- .\limesurvey-orig/admin/export_structure_xml.php	2010-12-07 15:54:47.717719500 +0000
+++ .\limesurvey-exportfix/admin/export_structure_xml.php	2010-12-07 16:09:42.389673300 +0000
@@ -197,12 +197,12 @@
 if (!isset($copyfunction))
 {
     $fn = "limesurvey_survey_$surveyid.lss";      
-    header("Content-Type: text/html/force-download");
+    header("Content-Type: text/xml");
     header("Content-Disposition: attachment; filename=$fn");
     header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");    // Date in the past
     header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
     header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
-    header("Pragma: cache");                          // HTTP/1.0
+    header("Pragma: public");                          // HTTP/1.0
     echo getXMLData();
     exit;
 }