I tried to do apt-get remove obscura but get the following message: "You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: osso-clock-ui: Depends: osso-clock-widget (>=0.1.4) but it is not installable E: unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution)." What should I do? The final goal is to unistall Obscura to unistall Python 2.4, then install Python 2.5 and install Obscura again (I want to try Bergie's script wikipedia2poi tha needs Python 2.5)