[Zope] 2Gurus: DB layer and ZODB timeouts

Hello, all. This a question to advanced ZGurus. ;-) When I have close a DB connection (exactly ZOracleConnection) and even deleted from ZODB, there is still a Oracle session. This is very bad, because count of sessions grows very fast. :( In Zope 2.5.0 session between Database and Server timeout is approx. 7-12 min, but in Zope 2.6.0 is probably forewer. :( Is there some cache of something? If yes, where it can be reduced to minimum? Does anybody know how to enforce to KILL em immediately and release a session between servers? Otherwise Zope goes to be unusable tool for "per-user" connections. :( -- Regards, Bogdan Of course I use Microsoft. Setting up a stable unix network is no challenge ;p