I always was starting Zope with the -D flag, so I was always collecting stdout from the server. To see if it might be enlightening to someone else, here is the information I see in stdout from running the standard start script which in turn runs "/usr/freeware/bin/python2 z2.py -D" ----------begin-stdout-from-zope---------- root@myhost:/cow/src/Zope-2.5.1-src## ./start ------ 2002-05-14T21:04:28 INFO(0) ZODB Opening database for mounting: '278356496_1020455750.166130' ------ 2002-05-14T21:04:29 INFO(0) ZODB Mounted database '278356496_1020455750.166130' at /temp_folder ------ 2002-05-14T21:04:29 INFO(0) ZServer HTTP server started at Tue May 14 17:04:29 2002 Hostname: myhost.mydomain.com Port: 8080 ------ 2002-05-14T21:04:29 INFO(0) ZServer FTP server started at Tue May 14 17:04:29 2002 Hostname: myhost Port: 8021 ------ 2002-05-14T21:04:29 INFO(0) ZServer PCGI Server started at Tue May 14 17:04:29 2002 Unix socket: /cow/src/Zope-2.5.1-src/var/pcgi.soc ------ 2002-05-14T21:08:12 INFO(0) ZODB Opening database for mounting: '278356496_1020455750.166130' ------ 2002-05-14T21:08:12 INFO(0) ZODB Mounted database '278356496_1020455750.166130' at /temp_folder ------ 2002-05-14T21:08:13 INFO(0) ZServer HTTP server started at Tue May 14 17:08:13 2002 Hostname: myhost.mydomain.com Port: 8080 ------ 2002-05-14T21:08:13 INFO(0) ZServer FTP server started at Tue May 14 17:08:13 2002 Hostname: myhost Port: 8021 ------ 2002-05-14T21:08:13 INFO(0) ZServer PCGI Server started at Tue May 14 17:08:13 2002 Unix socket: /cow/src/Zope-2.5.1-src/var/pcgi.soc ------ 2002-05-14T21:08:22 INFO(0) ZODB Opening database for mounting: '278356496_1020455750.166130' ------ 2002-05-14T21:08:22 INFO(0) ZODB Mounted database '278356496_1020455750.166130' at /temp_folder ------ 2002-05-14T21:08:23 INFO(0) ZServer HTTP server started at Tue May 14 17:08:23 2002 Hostname: myhost.mydomain.com Port: 8080 ------ 2002-05-14T21:08:23 INFO(0) ZServer FTP server started at Tue May 14 17:08:23 2002 Hostname: myhost Port: 8021 ------ 2002-05-14T21:08:23 INFO(0) ZServer PCGI Server started at Tue May 14 17:08:23 2002 Unix socket: /cow/src/Zope-2.5.1-src/var/pcgi.soc ----- ----------end-stdout-from-zope---------- I get the first "Open database for mounting...pcgi.soc" block when the server initially starts. When I click on the "Zope Management Interface" link I get the two repeated blocks and the program dumps core. Here is the var/Z2.log from the transaction: ----------begin-var/Z2.log-from-zope---------- XXX.XXX.X.XXX - Anonymous [14/May/2002:17:07:10 -0400] "GET / HTTP/1.0" 200 6241 "" "Mozilla/4.72 [en]C-BMY (WinNT; U)" XXX.XXX.X.XXX - Anonymous [14/May/2002:17:07:11 -0400] "GET /p_/ZopeButton HTTP/1.0" 200 9572 "http://nod.lvl.pri.bms.com:8080/" "Mozilla/4.72 [en]C-BMY (WinNT; U)" XXX.XXX.X.XXX - Anonymous [14/May/2002:17:07:42 -0400] "GET /manage HTTP/1.0" 401 1463 "http://nod.lvl.pri.bms.com:8080/" "Mozilla/4.72 [en]C-BMY (WinNT; U)" XXX.XXX.X.XXX - admin [14/May/2002:17:08:03 -0400] "GET /manage HTTP/1.0" 200 1175 "http://nod.lvl.pri.bms.com:8080/" "Mozilla/4.72 [en]C-BMY (WinNT; U)" XXX.XXX.X.XXX - admin [14/May/2002:17:08:03 -0400] "GET /manage_top_frame HTTP/1.0" 200 1437 "http://nod.lvl.pri.bms.com:8080/" "Mozilla/4.72 [en]C-BMY (WinNT; U)" XXX.XXX.X.XXX - admin [14/May/2002:17:08:03 -0400] "GET /manage_workspace HTTP/1.0" 302 478 "http://nod.lvl.pri.bms.com:8080/" "Mozilla/4.72 [en]C-BMY (WinNT; U)" XXX.XXX.X.XXX - admin [14/May/2002:17:08:03 -0400] "GET /manage_page_style.css HTTP/1.0" 200 3041 "" "Mozilla/4.72 [en]C-BMY (WinNT; U)" ----------end-var/Z2.log-from-zope---------- As you can see there is no warning or error message. I would wonder about the SGI python2 installation, but as I said in my original post, I get exactly the same behavior from the install on Linux box running RedHat 6.2. Still perplexed, Malcolm