It says :
Note that wp-config.php can be stored ONE directory level above the WordPress (where wp-includes resides) installation. Also, make sure that only you (and the web server) can read this file (it generally means a 400 or 440 permission).
I try to change the file permission wp-config.php to 400 or 440 by FTP but it refuse and automaticaly make it 640.
what is the problem ? or i have to make this file with 666 permission as it was.
Plz tell me