We started getting errors from our LISTSERV machine when one of our list owners tried to put his list back. The console looks like this Processing file PUT <listname> DMSXWS554E No storage available Error 0 while LSVSORT-ing list file. Internal error, postmaster has been notified. The machine was running at 3MG so we bumped it up to 4MG. I was able to put the list back out at 4MG but