XAMPP :
XAMPP had a default (php.ini) setting of magic_quotes_gpc = On. This setting causes problems when processing single-quotes. To have CK-ERP operating correctly within XAMPP, please set magic_quotes_gpc = Off.
FreeBSD :
in some older FreeBSDs or tailored distributions, the embedded php is compiled without iconv support or the supported iconv function is alternatively named as libiconv(). So, if you are planning to install CK-ERP within a FreeBSD environment, you may like to check thru the phpinfo() listing to ensure presence of iconv() support.