I am runing XP on one of my machines and keep getting the following occurence. A dialog box opens with the following statements: Intiated by NT AUTHORITY SYSTEM remote procedure call(RPC) service terminated unexpectedly . The box has a countdown timer and then closes the whole system down. Any ideas please? It appears at random and does not seem connected to any particular action. I have looked at system maintenance and I am in the middle of cleaning it up, maybe I will clean something out?