Hi, I tried this, but without success. Should I delete some files to make a clean start or is the --noincremental enough there? In the output of the command you gave, i got several errors and warnings, also this one: kbuildsycoca4(3281) KBuildServiceFactory::populateServiceTypes: "kontact/summaryplugin.desktop" specifies undefined mimetype/servicetype "Kontact/Plugin" What is causing this? Thanks in advance, Erwin On Friday 05 February 2010, Bram Schoenmakers wrote: > 2010/2/5 Erwin Van de Velde <erwin.vandevelde@xxxxxxxxx>: > > Hi, > > > Hi, > > > > Kontact does not show any of its plugins (kmail, korganizer, ...). It > > starts > > > empty and if started from CLI, it prints: > You could try to run kbuildsycoca4 --noincremental as your regular user. > > Kind regards,