DCOPserver problem

Hi, what causes the DCOPserver to crash? In the last couple of days I have several times been forced to restart my kde session, because the DCOPsever has crashed. After this I have neither been able to start any applications by clicking the panel icons nor to browse any www-sites with konqueror and so on. My system is SL 9.3 Pro with all YOU-updates and with kde 3.4.3. I haven't had this problem before, so I am curious to find out, if such a problem is well-known and if there are solutions for it. This problem is a bit nervy. Thanks in advance, Kimmo