diff --git a/question/type/ddmarker/lang/en/qtype_ddmarker.php b/question/type/ddmarker/lang/en/qtype_ddmarker.php
index 4ed2e888a61..8bf6b42f6da 100644
--- a/question/type/ddmarker/lang/en/qtype_ddmarker.php
+++ b/question/type/ddmarker/lang/en/qtype_ddmarker.php
@@ -42,7 +42,7 @@ $string['dropzone'] = 'Drop zone {$a}';
 $string['dropzoneheader'] = 'Drop zones';
 $string['editingddmarker'] = 'Editing drag and drop markers';
 $string['followingarewrong'] = 'The following markers have been placed in the wrong area : {$a}.';
-$string['followingarewrongandhighlighted'] = 'The following markers need to be placed in the correct area : {$a}.  The areas they should have been placed in are shown above.<br />Click on the markers above to see the areas they should have been placed in highlighted.';
+$string['followingarewrongandhighlighted'] = 'The following markers were not placed in the correct area : {$a}.  The areas they should have been placed in are shown above.<br />Click on the markers above to see the areas they should have been placed in highlighted.';
 $string['formerror_nobgimage'] = 'You need to select an image to use as the background for the drag and drop area.';
 $string['formerror_noitemselected'] = 'You have specified a drop zone but not chosen a marker that must be dragged to the zone';
 $string['formerror_nosemicolons'] = 'There are no semicolons in your coordinates string. Your coordinates for a {$a->shape} should be expressed as - {$a->coordsstring}.';
diff --git a/question/type/ddmarker/question.php b/question/type/ddmarker/question.php
index 20cca84915e..0b6eb5fc82f 100644
--- a/question/type/ddmarker/question.php
+++ b/question/type/ddmarker/question.php
@@ -71,8 +71,9 @@ class qtype_ddmarker_question extends qtype_ddtoimage_question_base {
         return $vars;
     }
     public function is_complete_response(array $response) {
-        foreach ($this->choices[1] as $choice => $notused) {
-            if ('' != trim($response[$this->choice($choice)])) {
+        foreach ($this->choices[1] as $choiceno => $notused) {
+            if (isset($response[$this->choice($choiceno)])
+                                            && '' != trim($response[$this->choice($choiceno)])) {
                 return true;
             }
         }
@@ -352,7 +353,8 @@ class qtype_ddmarker_question extends qtype_ddtoimage_question_base {
         $goodhits = array();
         foreach ($this->places as $placeno => $place) {
             if (isset($hits[$placeno])) {
-                $choice = $this->choices[$this->get_right_choice_for($placeno)];
+                $shuffledchoiceno = $this->get_right_choice_for($placeno);
+                $choice = $this->get_selected_choice(1, $shuffledchoiceno);
                 $goodhits[] = "{".$place->summarise()." -> ". $choice->summarise(). "}";
             }
         }
diff --git a/question/type/ddmarker/renderer.php b/question/type/ddmarker/renderer.php
index 56e35804426..d2b3d4e9413 100644
--- a/question/type/ddmarker/renderer.php
+++ b/question/type/ddmarker/renderer.php
@@ -131,6 +131,7 @@ class qtype_ddmarker_renderer extends qtype_ddtoimage_renderer_base {
     }
 
     protected function hint(question_attempt $qa, question_hint $hint)  {
+        $output = '';
         $question = $qa->get_question();
         $response = $qa->get_last_qt_data();
         if ($hint->statewhichincorrect) {