problem with shadow (or with PAM)

[maHo]

I'm using shadow-4.0.6-0.1 and pam-0.78.1-3

#v+
root]# userdel postgres
userdel: błąd podczas uwierzytelniania przez PAM
#v-

after downgrading shadow to 4.0.4.1-3 everything is ok. 

regards

maHo