Index: wp-admin/edit-attachment-rows.php
===================================================================
--- wp-admin/edit-attachment-rows.php	(revision 11119)
+++ wp-admin/edit-attachment-rows.php	(working copy)
@@ -202,7 +202,7 @@
 </table>
 <?php } else { ?>
 
-<p><?php _e('No posts found.') ?></p>
+<p><?php _e('No media found.') ?></p>
 
 <?php
 } // end if ( have_posts() )
Index: wp-admin/upload.php
===================================================================
--- wp-admin/upload.php	(revision 11119)
+++ wp-admin/upload.php	(working copy)
@@ -375,7 +375,7 @@
 <?php	}
 
 	} else { ?>
-	<tr><td colspan="5"><?php _e('No posts found.') ?></td></tr>
+	<tr><td colspan="5"><?php _e('No media found.') ?></td></tr>
 <?php } ?>
 </tbody>
 </table>