Thanks Chris-- don't want to indulge in any masochism just now (at least any more than I have to)! I did what you said, and my zope is now upgraded, along with Plone from 2.0.3 to 2.0.4 So here's what I did for the upgrade from 2.7 to 2.7.2. Installed the new core to /var/zope272 sitting alongside the old core which is in /var/zope27 Used the old /var/zope-instance (thank goodness!): I had to edit the first few lines of zope.conf to point to the new core. Also, as you suggested, I edited runzope and zopectl, again pointing to the new zope core. However on startup, the old zope was still being used. Turns out I had an errant zopectl script sitting in /etc/rc.d/init.d which pointed to the old zope core. Removing that solved the problem. I'm guessing others are stuggling with a upgrade a bit too. Any suggestions on how to add this procedure to the online Zope Book 2.7 edition? I would be happy to write it up. Harlow Pinson Indepth Learning Email: hpinson@indepthl.com Web: http://www.indepthl.com Voice: 505-994-2135 FAX: 208-475-7678