[Zope] Data object timeout value

I have noticed that the Data object timeout value in the Transient Object Container seems to reset itself to the default value of 20 minutes each time Zope is restarted. The Zope version is (Zope 2.5.1 (binary release, python 2.1, linux2-x86), python 2.1.3, linux2) and python is 2.1.3 (#1, Apr 15 2002, 11:13:45) [GCC 2.7.2.3] . Has anyone else seen this behavior and is there a way to make this value sticky? I don't want to have to go in and change it each time we restart Zope. I have multiple site which use session tracking and this starting to cause frequent session timeouts in some of them. TIA, Bob Corriher P-Wave Inc.