On Tue, 29 Apr 2008 10:14:40 -0700, Brett Watts <[log in to unmask]>
>Does anyone out there have an idea what could be causing this to happen.
You did not mention looking at the LISTSERV log files. That is always a good
place to start for questions like this. If there was a crash, some evidence
of this will usually be logged, or there will at least be some precursor
evidence (such a reindexing a huge message archive file or similar).