Hi there, I have zope 2.5b1 on a Linux box. To avoid problems of which I have read I exported all folders and reimported them in a plain vanilla Data.fs However a great many operation are very slow. Sometimes changing to a folder takes 20 seconds. When things are slow top shows that python eats up 100% of the cycles. I am using Zope's python. Could an installed product slow down things (even if not used )?? thanks for any hints Robert here is what debug info says: a.. Zope version: (Zope 2.5.0 (binary release, python 2.1, Linux-x86), python 2.1.2, linux2) a.. Python version: 2.1.2 (#1, Jan 25 2002, 13:17:56) [GCC 2.7.2.3] a.. System Platform: linux2 a.. SOFTWARE_HOME: /var/lib/zope/lib/python a.. INSTANCE_HOME: /var/lib/zope a.. CLIENT_HOME: /var/lib/zope/var a.. Process ID: 20593 (1024) a.. Running for: 2 hours 33 min 32 sec a.. sys.path: /var/lib/zope/lib/python/ZopeZODB3 /var/lib/zope/lib/python /var/lib/zope /var/lib/Zope-2.5.0-Wing-linux2-x86 /var/lib/zope /var/lib/zope/lib/python2.1 /var/lib/zope/lib/python2.1/plat-linux2 /var/lib/zope/lib/python2.1/lib-tk /var/lib/zope/lib/python2.1/lib-dynload /var/lib/zope/lib/python2.1/site-packages