SpamAssassin autolearn problem

[Gabriel George POPA]

           Some e-mails I receive have autolearn=no and others have 
autolearn=failed. I use the classic combination of spamd/spamc and the 
OpenBSD 3.8 provided p5-SpamAssassin package, installed as OpenBSD 
recommends. I tried to follow the instructions at 
spamassassin.apache.org (to use for example /var/spamassassin (0777 
mode) in order to store learnt data, bayes_path and bayes_file_mode, 
restarted spamd etc., nothing worked). What should I do next? I must 
create all those files by hand (the files in /var/spamassassin). I must 
mention that when I was using spamassassin alone (not spamc/spamd) for 
my account autolearn worked correctly.

                                                                                                                                                                             
Respectfully yours,
                                                                                                                                                                                         
Gabriel George POPA