I have seen a number of assertion failures listed on this forum but not this specific one [color:red]"elem.cpp-1000"[/color]. This occurred after this weekend after almost all of the end of month backups had been completed (Retrospect was upgraded to 7.6 last week). At the time the system failed, a transfer to tape was running and another backup (missing a source location) tried to start. Both operations failed and there was no record of either failure in the log files. Any insight on this error would be welcome.