
check if "TZN_DATE_FRM" is defined in config.php
	define("TZN_DATE_FRM","%y-%m-%d");


if you use charcode iso-8859-1 change this line in common.php

//setLocale(LC_ALL, 'sv_SE.UTF-8', 'sv_SE.utf8', 'sv_SE', 'swedish');
setLocale(LC_ALL, 'sv_SE.ISO-8859-1', 'sv_SE.iso8859-1', 'sv_SE', 'swedish'); 