applet crashes on logout

dpkg: error processing qmail (--configure):
subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of qmail-run:
qmail-run depends on qmail (>= 1.06-2.1); however:
Package qmail is not configured yet.
dpkg: error processing qmail-run (--configure):
dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:
qmail
qmail-run

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: qmail 1.06-4
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic-pae 3.2.24
Uname: Linux 3.2.0-29-generic-pae i686
ApportVersion: 2.0.1-0ubuntu12
Architecture: i386
Date: Wed Aug 22 08:46:00 2012
InstallationMedia: Ubuntu 12.04 "Precise" - Build i386 LIVE Binary 20120426-19:48
ProcEnviron:
 LANGUAGE=zh_CN:
 TERM=xterm
 PATH=(custom, no user)
 LANG=zh_CN.UTF-8
 SHELL=/bin/bash
SourcePackage: netqmail
UpgradeStatus: No upgrade log present (probably fresh install)