In reference to the listserv message below. What exactly does this mean? What is a checksum error? The message, as you can see, does not seem to insistant that I issue this LSVLDELT ... command. It says that 'I may' want to issue it. How do I know for sure whether or not to issue it? Stan Horwitz Listserv Postmaster Temple University Acknowledge to: OASIS@TEMPLEVM (or VM.TEMPLE.EDU) ----------------------------Original message---------------------------- A checksum error has been detected on GLOBLIST FILE for the local node information. No automatic action has been attempted lest a loop be started. You may wish to issue a LSVLDELT REFRESH LISTSERV@TEMPLEVM command to try to correct the problem.