unable to login to console

[Mahmudur Rahman Jami]

Hi,

I am using Debian lenny. I am unable to login to my system. It shows the
following message when I put user account at desktop console CUI,

Usage login [-p] [name]
     -p [-h host] [-f name]
     -p -r host

This system is running qmail/webmail services and very important to me.

Please help me.

Rgds,

JAMI