Session closed right after login

Hi,

I installed ejabberd-1.1.2, the web admin works ok, I creaded via ejabberdctl an admin and also normal accout, till this point all works, but when I try to login with an jabber client (centericq or gaim) I just get kicked out right in the same moment, as you can see from the log, no error message follows.

ejabberd@myhost:/var/log/ejabberd$ tail ejabberd.log

=INFO REPORT==== 2006-12-24 18:53:08 ===
I(<0.352.0>:ejabberd_c2s:382): (#Port<0.398>) Accepted legacy authentication for smersc@myhost.com/centericq

=INFO REPORT==== 2006-12-24 18:53:08 ===
I(<0.352.0>:ejabberd_c2s:1161): (#Port<0.398>) Close session for smersc@myhost.com/centericq
ejabberd@myhost:/var/log/ejabberd$

Does anybody have an idea what could be the problem ?

Thanks