Hi Adel Al-Hezmi, Thank you for your reply and help. I checked both php.ini and config.php files. I'm sure that there are no mistakes in both files. Once I submit the login form, the process is holding forever and no response is given. I think the problem occurs at the write2fifo function. It seems nothing is read from the ser_fifo file and the process is holding when the ser_fifo file is open. Could you mind telling me how to solve this problem ? Thank you very much. Regards, Tracy ----- Original Message ----- From: Adel Al-Hezmi To: 'Tracy Chan' ; serusers(a)lists.iptel.org Sent: Tuesday, December 21, 2004 9:01 PM Subject: RE: [Serusers] Problem in login user interface Hi, make sure that register_globals parameter on the php.ini file (/etc/php.ini) is turned. After changing this value, then you have to restart the http server. If this parameter has been set, then it might be a mistake in the config.php script, where the path to the user_interface is not the right one!! best regards, Adel Al-Hezmi -----Original Message----- From: Tracy Chan [mailto:tracy@cyber-sys.com.hk] Sent: Monday, December 20, 2004 9:51 AM To: serusers(a)lists.iptel.org Subject: [Serusers] Problem in login user interface Hi All, I'm new to SER. I have some problems about login the user interface. When login, it seems the login process holds and don't have any response. And the permission of fifo file is set to 666. Could anyone help me to solve this problem ? Thank you very much. Regards, Tracy