It is my belief that listserv treats a member as concealed when column 92 is not blank. I have MANY lists where the flag area (col 81+) has been shifted to the right 4 or more columns. Easy to spot since 86-90 is the date joined. I have not tried to fix all of these entries since they haven't seemed to cause any trouble. Seems to me Eric had a note about this shiting problem a year or so ago, but I can't find any record of it. Certainly hand editing the list can cause this problem but I think something else causes it also.