diff --git a/mod/assignment/mod.html b/mod/assignment/mod.html
index dfd4b64b24323..27f239c9cfef4 100644
--- a/mod/assignment/mod.html
+++ b/mod/assignment/mod.html
@@ -6,6 +6,30 @@
         $defaultformat = FORMAT_MOODLE;
         $onsubmit = "";
     }
+    if (empty($form->name)) {
+        $form->name = "";
+    }
+    if (empty($form->description)) {
+        $form->description = "";
+    }
+    if (empty($form->format)) {
+        $form->format = "";
+    }
+    if (empty($form->type)) {
+        $form->type = "";
+    }
+    if (empty($form->resubmit)) {
+        $form->resubmit = "";
+    }
+    if (empty($form->grade)) {
+        $form->grade = "";
+    }
+    if (empty($form->maxbytes)) {
+        $form->maxbytes = "";
+    }
+    if (empty($form->timedue)) {
+        $form->timedue = "";
+    }
 ?>
 
 <form name="form" method="post" <?=$onsubmit ?> action="<?=$ME ?>">
@@ -107,7 +131,6 @@
            print_date_selector("dueday", "duemonth", "dueyear", $form->timedue);
            echo "&nbsp;-&nbsp;";
            print_time_selector("duehour", "dueminute", $form->timedue);
-           formerr($err["duedate"]);
     ?></td>
 </tr>
 </table>
diff --git a/mod/forum/lib.php b/mod/forum/lib.php
index b760e84dbeabc..f47664f90a2ec 100644
--- a/mod/forum/lib.php
+++ b/mod/forum/lib.php
@@ -1472,7 +1472,11 @@ function forum_print_latest_discussions($forum_id=0, $forum_numdiscussions=5, $f
         } else {
             $discussion->replies = 0;
         }
-        $ownpost = ($discussion->userid == $USER->id);
+        if (!empty($USER->id)) {
+            $ownpost = ($discussion->userid == $USER->id);
+        } else {
+            $ownpost=false;
+        }
         switch ($forum_style) {
             case "minimal":
                 echo "<P><FONT COLOR=#555555>".userdate($discussion->modified, "%d %b, %H:%M")." - $discussion->firstname</FONT>";