Comment 2 for bug 610376

Hi Clem,

uhm to reproduce it (and not mess up your system in the course - so don't use a ppa that might replace vital stuff in your system like the gnome-shell testing ppa or xorg-edgers or something like that because I don't quite know if you wouldn't just sit there without xorg-server or the like and I don't want to find out to be honest) just find a ppa that only has one packet or so on it, which you don't really need, install that package and then purge the ppa. so for expample "sudo add-apt-repository ppa:kilian/f.lux && sudo apt-get update && sudo apt-get install fluxgui" and then "sudo ppa-purge ppa:kilian/f.lux"

Ppa purge will then try to replace fluxgui with the most current "isadora" version that is left in the other repos. (of course there is none but that's beside the point as it should look for "lucid" anyway)