Help: Errors from aptitude install

[Dennis Wicks <wix@mgssub.com>]

Greetings;

Specifically I am trying to install samba and its 
parts, samba-common samba smbclient smbfs, on Lenny and 
I keep getting errors like the following.

    Setting up samba-common (2:3.0.30-2) ...
    Error: unknown response from debconf:'keep_current'
    dpkg: error processing samba-common (--configure):

I have tried all of the options besides "keep_current" 
to no avail.

Any ideas as to what the problem is or how to fix it?

TIA!
Dennis