train-good and train-spam; cron error

1)  I've changed my .procmailrc from using "receive",
    as recommended in an early version of the documentation,
    to using "train" as now recommended.
    I think I understand the reasoning for that recommendation.

    The documentation still recommends using "good" and "spam" 
    for the initial training and for later corrrective training.
    Would the use of "train-good" or "train-spam"
    in initially training spamprobe 
    or in later corrective sessions be appropriate,
    in order better to control the size of the database?
    If not, could "train-good" and "train-spam" perhaps be used 
    for just the latter part of the initial training?
    (That is, train on one small "good" file and one small "spam" file,
    then switch to "train-good" and "train-spam" and train some more.)
    After the initial training, my sp_words database 
    is about 60 megabytes.


2)  My cron job ran fine for seven months,
    but recently it has given the following error in every run.

       Your "cron" job on csa
       /usr/local/bin/spamprobe cleanup 4 14
       produced the following output:
       warning: berkeley db reported error: c_get: I/O error (5)

    I have deleted and rebuilt the "lock" and "sp_words" files
    every day for the past few days, but it hasn't helped.
    Our sysmgr has run out of ideas.
    We are running spamprobe 1.0 on Solaris 9.
    Any suggestions of things to try?
-----
John Chandler


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