graeme_p - 2:34 am on May 3, 2011 (gmt 0)
Ubuntu ISO followed by installing KDE is not exactly the same as installing from the Kubuntu ISO: there are differences in the applications and components installed.
If you installed kubuntu-desktop you have all stuff installed by the Gnome desktop AND all the stuff from the Kubuntu stuff.
If you installed another KDE package you have the Ubuntu Gnome stuff plus a subset of the Kubuntu stuff.
Not sure of the details because I have not used Ubuntu for a while