Comment 3 for bug 59765

I also can confirm this happens after updating xubuntu 6.04 to 6.04.1. It can be reproduced by installing an xubuntu 6.04 without any patches and then updating with the latest offficial updates to 6.04.1.
I think it has something to do with the updates for the locales and/or language files.
because setting the xfce language to English or Japanese doesn't shows the effect, but setting german language as default xfce the bug appaers.
However it seems that in current 6.10 knot 2 the bug ist still present and doesn't only affect german interface only but also englisch interface. In 6.04.1 the bug ist only present in the german interface of settings manager.
I would suggest to examine the locales and language packages in order to find the bug. Because I did not found this bug in any other Distribution using the same xfce Version, so it definetly is an Ubuntuspecific problem with the language.