Ciao,
I had this problem with KDE 3.4.2 when I tried to open kcontrol:
kio (KSycoca): Trying to open ksycoca from /var/tmp/kdecache-sbianchi/ksycoca
kcontrol: WARNING: No K menu group with X-KDE-BaseGroup=settings found ! Defaulting to Settings/
and control center window is completely void but for a Network tag.
I don't know what caused this problem, since my kconstruct installation worked perfectly for a long time.
I therefore decided to install KDE 3.4.3 with Konstruct.
The installation went through without problems, but I still get the same error with kcontrol!
So the problem is outside KDE....
What's that?
Thanks