[Mailman-Users] "command not in docroot"

[Leo A. Notenboom]

I've suddenly started getting that error in suexec_log, and as
a result no one can confirm or worse, leave, the mailing lists
that up until recently had been working fine.

This is on Redhat Enterprise w/ Plesk - I suspect a nightly
up2date hosed something that mailman cares about.

Any thoughts on what to do to correct this problem?

Leo