blackbirdI have very carefully checked, with root konqeror mode
file:///home/gert/.kde4/socket-localhost.localdomain ---> /home/gert/tmp/ksocket-gert
~/.kde4/socket-localhost.localdomain (pointing to ~/tmp/ksocket-<username>
~/.kde4/socket-localhost.localdomain (pointing to /home/gert/tmp/ksocket-gert or ~/tmp/ksocket-gert )
file:///home/gert/.kde4/tmp-localhost.localdomain ---> /home/gert/tmp/kde-gert
~/.kde4/tmp-localhost.localdomain (pointing to ~/tmp/kde-<username>), and
~/.kde4/tmp-localhost.localdomain (pointing to /home/gert/tmp/kde-gert or ~/tmp/kde-gert), and
file:///home/gert/.kde4/cache-localhost.localdomain ---> /var/tmp/kdecache-gert (from properties using root konq)
~/.kde4/cache-localhost.localdomain (pointing to /var/tmp/kdecache-<username>).
~/.kde4/cache-localhost.localdomain (pointing to /var/tmp/kdecache-gert).
Perhaps a bit overkill but lining it up makes sure I am getting it right.
The directories exist and looks very legitimate, but I do not know what to expect at this stage.
I almost fell into a trap, I was looking at the above files on my working system right now which is a pclos2010.07 LiveCD install fully updated + Opera and Kate hardly anything else.
I have now mounted the pclos2010.07 LiveCD install
not updated + Opera + Kate KDE 4.5 via (Dolphin did the mount)
Using double panel in root Konqueror I have compared side by side the directories, they are identical, down to the last file in the subdirectories.
df thanks, the brain started functioning again and I remembered that I use that often, sort of always when fdisk -l
kjpetrieI agree with you, it was a poor gamble. I need a very simple pclos2010.07 LiveCD install to test some aspects of printing but finding that the use of Kate's session ability is phenomenal keeping track of several opened text files when moving around on different desktops making notes.
This partly was why I took the chance, another part
I forgot KDE 4.4.5 at the time of install, because my test system 1 is similar but fully updated. The same colouring of the systems is to say the least confusing for me, I should take the time and change some scheme in each.

With Synaptic on temporary sideline, can I with some simple apt dexterity undo the few extra files that has been installed? I am taking the opportunity to learn a bit deeper on this mistake. Seems excellent chance.