DCOP problem in SuSE7.3

Hello SuSE folkz, When I try to launch any of the programs on KDE desctop and the panel, I'm getting a persistent error message: "KLauncher can not be reached via DCOP" Applications just won't start. I already did dcop and kde related directories and files removal from /tmp, /root, /root/.kde2 and restarted KDE. It didn't solve the problem. Could somebody tell me please how to fix it or where to find a cure for this problem. Thank you in advance. Alex