computer janitor not responsive while running

This is true. I don't know why it happens, and didn't find the cause in time for karmic, I'm afraid.

For me, it occurred when removing "xulrunner-1.9-gnome-support". Computer-janitor maybe was waiting for finishing of that action, but nothing happened (see attached stdout, last logged info is "Post-cleanup"). Strange is that when I interrupted it using Ctrl+C, killed the computer-janitor and started again, I found out that the package xulrunner was really uninstalled.
I tried to start computer-janitor several times, but it always failed in the same way (but on various packages).

IMHO some progress of running actions should be displayed in computer-janitor.
Currently computer-janitor is fast unusable for me.

Used SW:
Ubuntu 9.10, amd64

This should be fixed in bzr now, its not that intrusive, we might consider backporting it for karmic-proposed. Its more than just a UI bug because the karmic version seems to sometimes deadlock as well.

This bug was fixed in the package computer-janitor - 1.14-0ubuntu1

---------------
computer-janitor (1.14-0ubuntu1) lucid; urgency=low

  * New upstream release:
    - merge fixes from Julian Andres Klode (many thanks)
    - threading improvements
    - optimization
    - improve the UI responsiveness
  * The above threading/UI changes should fix LP: #451833
    (needs a updated update-manager-core as well)
  * debian/control:
    - remove the python-glade2 dependency (we use gtkbuilder)
    - set XS-Python-Version to "current" to workaround strange
      effect that python-support generates 2.5 headers for the
      binaries otherwise
 -- Michael Vogt <email address hidden> Wed, 25 Nov 2009 10:00:18 +0100