Spamassassin fails

Hi!

I've been running a server with Dovecot, Sieve, Spamassassin and getmail to handle my emails for several years now.

Just before christmas I did one of these regular updates and since then I got problems with spamassassin. Quite a lot of spam is not been filtered out.  I can see a lot of errors like these in the mail-log.

spamd: failed to create readable default_prefs: /home/vmail/.spamassassin/user_prefs

Vmail is the user that is running my scripts that retrieves email and executes spamc.

Any ideas?

Regards, Hans