[Spambayes] Pop3proxy training suddenly quit working

[David Handy]

I was minding my own business happily using spambayes 1.0a2 pop3proxy and 
having good results with it, when one day (July 18) message caching and 
training quit working. Fortunately it still classifies messages as 
ham/spam/unsure, but I can't train through the pop3proxy web UI.

I upgraded to 1.0a4 - same result. I made sure that the spambayes message 
ID is added to the headers - I can't find a message by that ID, nor does 
anything show up in the *cache folders. My bayescustomize.ini still says 
cache_messages=True .

I would have filed a bug on sourceforge but I have no stack trace nor 
other evidence to produce, just my word that it suddenly quit working.

Any ideas or suggestions?

Thanks!