Autostart "suddenly" doesn't work on Fedora 16

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http://forums.fedoraforum.org – Hello. I've got a problem with the autostart on 3.4.9-2.fc16.x86_64, KDE Version 4.8.5. Usually Pidgin, Skype and other stuff automatically starts if I log in and some features like the printer applet are deactivated. Now it's like after a fresh installation. If I look at the service manager at the system start up settings, a error message "Unable to contact KDED" pops up. I already had this problem some time ago and I solved it by deactivating the Nepomuk file indexing (Figured it out by searching the internet). But now the problem occurs again, Nepomuk's still deactivat (HowTos)