[Serusers] Problem with serweb...

Hello When i open serweb with IE , it always show this error message: Function aggregate_methods() doesn't exists. Try install Classkit extension. http://pecl.php.net/package/classkit -------------------------------------------------------------------------------------------------------------------------- But i have install classkit , and i have set extension=classkit.so in php.ini and the problem still exist. why?? my system is FC4 httpd-2.0.54-10.2 + php-5.0.4-10.5 [root@15 ~]# pear list Installed packages: =================== Package Version State Archive_Tar 1.1 stable Console_Getopt 1.2 stable DB 1.7.6 stable HTML_Template_IT 1.1 stable HTTP 1.3.5 stable Mail 1.1.4 stable Net_SMTP 1.2.6 stable Net_Socket 1.0.6 stable Net_UserAgent_Detect 2.0.1 stable PEAR 1.3.5 stable XML_Parser 1.2.6 stable XML_RPC 1.4.0 stable classkit 0.4 beta