Comment 2 for bug 691642

>>>>> Launchpad Bug Tracker writes:

    > You have been subscribed to a public bug:
    > Show Log crashes, if the line:

    > #test ÄäÖöÜüß

    > is present in file authentication.conf. All is O.K. if this line is
    > deleted. I got the following Exeption, when i use the right mouse key
    > and "Show Log". If I click on the clock Symbol on the main window, the
    > "Show Log Window" disapears without any message.

This is very confusing...

I could understand if 'ÄäÖöÜüß' was *present* in the file in some
encoding that 'utf-8' *can't* decode.

Can you check that an *empty* authentication.conf doesn't trigger the
problem ?

If that's the case try adding various strings (with and without umlaut)
until you trigger the bug and attach the resulting file.