assign file being overwritten regularly

[Carl J. Danowski]

Does anyone know why the 'assign' file in /etc/qmail/users would continually be overwritten?   I edit it and run qmail-newu and everything works great...   then, at some point later, assign is re-written and the addresses don't work anymore.   for example, i've got:   =carl:carldan:600:100:/home/carldan:::   which later gets written to   =carldan:carldan:600:100:/home/carldan:::   hmm...   Thanks!