The subject update manager tells me that an update to my version on Scribus-ng (Version 1.4.0 svn) is available. When I try to install it via the Synaptic Package Manager I receive a warning 'Requires installation of untrusted package' and I am prevented from installing it.
How do I obtain an authentication key for the Scribus repository, which, by the way, I cannot see in the list of repositories displayed by the package manager! So I have no idea how or from where Ubuntu is getting this update availability notification. It seems somewhat daft to tell me about the availability of an update which is not available to me.... AAH
