John Summerfield <debian <at> herakles.homelinux.org> writes: > If you install kde4 I recommend you only use it from a new account, just > in case you want to revert. A new account won't help much because the package replacement is system-wide, an entirely separate Fedora installation is needed if you want to be able to revert safely, or you can use a live CD like the F9 Alpha one. Downgrading all KDE packages after you upgraded to KDE 4 is a big PITA. But it's correct that it's safest to use a different account / home directory too to make sure your KDE 3 settings won't be touched. Kevin Kofler