KOrganizer after update to Ubuntu 12.04 not usable

[Walther Neuper]

KOrganizer, an indispensable tool for my daily work, works 
insufficiently after update from Ubuntu 10.04 to Ubuntu 12.04 (in the 
sequel addressed by "update"):

(a) the appointments entered before update still pop up, can be 
suspended etc.
      Apparently they come from std.ics [1] also displayed in KOrganizer

(b) I can enter new appointments (<Apply> "test appointment" in 
screenshot [0]),
      and they pop up, too --- but where are they stored [2] ?

(c) the appointments entered do not show up in the <Agenda View>
      in spite of the configuration shown in the screenshot [0].

(d) KOrganizer's installation seems correct [3,4]

Without (c) KOrganizer is useless --- so any hints for trouble shooting 
are highly apprecciated!

-------
[0] 
http://www.ist.tugraz.at/projects/isac/www/download/Screenshot-korganizer.png

[1]
neuper at neuper:~/.kde/share/apps/korganizer$ ls -l
total 820
:
-rw-r--r-- 1 neuper neuper 401537 Oct  2 10:21 std.ics

[2]
neuper at neuper:~/.kde$ sudo grep -r "test appointment" *
[sudo] password for neuper:
grep: socket-neuper/klauncherhX2805.slave-socket: No such device or address
grep: socket-neuper/nepomuk-socket: No such device or address
grep: socket-neuper/kdeinit4__0: No such device or address
neuper at neuper:~/.kde$

[3]
neuper at neuper:~$ sudo apt-get install -s korganizer
[sudo] password for neuper:
Reading package lists... Done
Building dependency tree
Reading state information... Done
korganizer is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

[4]
KOrganizer
Version 4.8.5
Using KDE Development Platform 4.8.5 (4.8.5)





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