Index: modules/block.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/block.module,v
retrieving revision 1.163
diff -u -F^f -r1.163 block.module
--- modules/block.module	12 Apr 2005 18:52:47 -0000	1.163
+++ modules/block.module	14 Apr 2005 11:35:55 -0000
@@ -307,8 +307,8 @@ function block_admin_configure($module =
  * Menu callback; displays the block creation form.
  */
 function block_box_add() {
-  $edit = $_POST['edit'];
-  $op = $_POST['op'];
+  $edit = isset($_POST['edit']) ? $_POST['edit'] : array();
+  $op = isset($_POST['op']) ? $_POST['op'] : '';
 
   switch ($op) {
     case t('Save block'):