package qdbus not installed failed to install/upgrade: qdbus: 4

kruus@borg:~$ lsb_release -rd
  Description: Ubuntu 12.04 LTS
  Release: 12.04
kruus@borg:~$ apt-cache policy qt4-x11
  qt4-x11:
    Installed: (none)
    Candidate: (none)
    Version table:

I expect to not see error messages when I login about packages that
something is trying to install

after login, see error message about failure to install qdbus,
perhaps related to firing up firefox (but perhaps also some
background process caused it).

install failure was a conflict with qdbus:i386
  apt-get remove qdbus:i386 (perhaps left over from earlier oneiric???)
  apt-get install qdbus
Maybe this will avoid the message in the future, from whatever wanted qdbus installed

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: qdbus (not installed)
ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
Uname: Linux 3.0.0-17-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Mon Apr 30 14:00:52 2012
DuplicateSignature:
 Unpacking replacement python-qt4 ...
 Selecting previously unselected package qdbus.
 dpkg: error processing /var/cache/apt/archives/qdbus_4%3a4.8.1-0ubuntu4_amd64.deb (--unpack):
  qdbus: 4:4.8.1-0ubuntu4 (Multi-Arch: foreign) is not co-installable with qdbus:i386 4:4.8.1-0ubuntu4 (Multi-Arch: foreign) which is currently installed
ErrorMessage: qdbus: 4
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
SourcePackage: qt4-x11
Title: package qdbus (not installed) failed to install/upgrade: qdbus: 4
UpgradeStatus: Upgraded to precise on 2012-04-27 (2 days ago)