--- a/inc/error.inc.php	Mon Apr 28 18:47:19 2008 +0000
+++ b/inc/error.inc.php	Mon Apr 28 19:05:06 2008 +0000
@@ -59,6 +59,7 @@
 define("ERR_UNKNOWN", _('Unknown error.'));
 define("ERR_INV_EMAIL", _('Enter a valid email address.'));
 define("ERR_ZONE_NOT_EXIST", _('There is no zone with this ID.'));
+define("ERR_INSTALL_DIR_EXISTS", _('The install/ directory exists, you must remove it first before proceeding.'));
 
 /* DATABASE */
 define("ERR_DB_NO_DB_NAME", _('No database name has been set in config.inc.php.'));