I have found some info about upgrading KDE, for example about the $KDEHOME variable, but not about downgrading. My problem is that I need to frequently switch between different versions of KDE with the same home directory for both of them. Was KDE designed for a situation like this? If not, do you know of any trick that I can use to do this? ___________________________________________________ . Account management: https://mail.kde.org/mailman/listinfo/kde. Archives: http://lists.kde.org/. More info: http://www.kde.org/faq.html.