[Zope] schema won't update - persistant .pyc files??

[michael nt milne]

I've been trying to edit basic text information in a product schema, the
member.py of the Samplex tutorial but the text I enter simply won't update
through to the form on the website. I've tried everything, including
flushing the cache and refreshing the product, re-starting etc. Seems like
Zope is holding the old information somewhere and won't let go of it. Does
anyone know of any issues with .pyc files that won't replace etc and seem to
be cached indefinitely? Totally infuriating. I've tried running in debug
mode but I couldn't get any ZMI inferface that way.
 This is my set-up:
    Zope Version
 (Zope 2.8.0-final, python 2.3.5, linux2)
 Python Version
 2.3.5 (#1, Jul 27 2005, 00:45:20) [GCC 3.3.2 20031022 (Red Hat Linux
3.3.2-1)]
 System Platform
 linux2
 SOFTWARE_HOME
 /opt/Zope-2.8/lib/python
 ZOPE_HOME
 /opt/Zope-2.8
 INSTANCE_HOME
 /home/zopeinstance
 CLIENT_HOME
 /home/zopeinstance/var
 Network Services
 ZServer.HTTPServer.zhttp_server (Port: 8080)
  Process Id
 1401 (49156)
 Running For
 29 min 33 sec
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