Index: wp-admin/edit-pages.php
===================================================================
--- wp-admin/edit-pages.php	(revision 11765)
+++ wp-admin/edit-pages.php	(working copy)
@@ -251,7 +251,7 @@
 <div class="alignleft actions">
 <select name="action">
 <option value="-1" selected="selected"><?php _e('Bulk Actions'); ?></option>
-<?php if ($_GET['post_status'] == 'trash') { ?>
+<?php if (isset($_GET['post_status']) &&  $_GET['post_status'] == 'trash') { ?>
 <option value="untrash"><?php _e('Restore'); ?></option>
 <option value="delete"><?php _e('Delete Permanently'); ?></option>
 <?php } else { ?>
@@ -261,7 +261,7 @@
 </select>
 <input type="submit" value="<?php esc_attr_e('Apply'); ?>" name="doaction" id="doaction" class="button-secondary action" />
 <?php wp_nonce_field('bulk-pages'); ?>
-<?php if ($_GET['post_status'] == 'trash') { ?>
+<?php if (isset($_GET['post_status']) &&  $_GET['post_status'] == 'trash') { ?>
 <input type="submit" name="delete_all" id="delete_all" value="<?php esc_attr_e('Empty Trash'); ?>" class="button-secondary apply" />
 <?php } ?>
 </div>
@@ -298,7 +298,7 @@
 <div class="alignleft actions">
 <select name="action2">
 <option value="-1" selected="selected"><?php _e('Bulk Actions'); ?></option>
-<?php if ($_GET['post_status'] == 'trash') { ?>
+<?php if (isset($_GET['post_status']) &&  $_GET['post_status'] == 'trash') { ?>
 <option value="untrash"><?php _e('Restore'); ?></option>
 <option value="delete"><?php _e('Delete Permanently'); ?></option>
 <?php } else { ?>
@@ -307,7 +307,7 @@
 <?php } ?>
 </select>
 <input type="submit" value="<?php esc_attr_e('Apply'); ?>" name="doaction2" id="doaction2" class="button-secondary action" />
-<?php if ($_GET['post_status'] == 'trash') { ?>
+<?php if (isset($_GET['post_status']) &&  $_GET['post_status'] == 'trash') { ?>
 <input type="submit" name="delete_all2" id="delete_all2" value="<?php esc_attr_e('Empty Trash'); ?>" class="button-secondary apply" />
 <?php } ?>
 </div>