PureFTPD - UnixAuthentication

Hello, guys!

I have a web server that uses cPanel for management and I installed PureFTPD as FTP server. Everything works fine, except one small detail. I have another user that is not created by cPanel (I created it myself using adduser) and I want to be able to connect to FTP using this username. For doing this, on other servers, I set UnixAuthentication to yes in pure-ftpd.conf. I did it, I restarted the FTP server, but it still doesn't allow me to connect using that username. It gives me this message: 530 Login authentication failed.

If I try to connect using a username created by cPanel it works, but not with this username.

Any ideeas on where the problem could be located?

In case that it necesarely, the server runs on FreeBSD 6.2-RELEASE and the pureftpd version is 1.0.21_2.