Same error here on a karmic koala. the change in the "managed" field
changes nothing (the "ifupdown" entry is always displayed and not
editable/removable anyway). If I try to add a new setting, it allows me,
but I must not set it as available to all users. if I do, it disappears
from the list. also
The ErrorMessage is something along the line "tar file is corrupt - the package
archive is corrupt" (sorry for not including the translation, I supposed it was
in english somewhere along the automatic attachments)
In fact, I can't reproduce it either: after half an hour I tried again and the
upg