Comment 9 for bug 347778

See also: http://www.backports.ubuntuforums.org/showthread.php?t=760018 and http://ubuntuforums.org/showthread.php?t=622843

Lots of confirmation about the lack of visual prompt ... I suppose that people haven't noticed the Window List entry for the prompt window, which isn't otherwise presented.

As best I understand it, the problem is with gksu(do).