[Zope] aargh. corrupted zope1.10 install.

[Anthony Baxter]

I've got a Zope 1.10 install that until this morning was working 
absolutely fine. Suddenly it's developed a rather bad habit - it
seems like loading the ODB is failing in some way. It starts up
fine, but attempts to access anything fail. 

Doing a GET / HTTP/1.0 simply returns back 

<module 'Main'>

I've tried moving the Data.bbb aside, and putting in the Data.bbb.in
that the installation shipped with, to no avail. As far as I can see,
_nothings_ changed in the system (so sayeth find . -mtime). 

Anyone? Please? 

Anthony