spamassassin at 100 percent CPU

[Noah]

Hi there,

what are some things to check with spamassassin commonly running at 100 
percent?  I used apt-get to reinstall of spamassassin 3.3.2-2ubuntu1 and 
no cure.  nothing in the syslog that seems relevant.

Ubuntu 12.04
Linux 3.15.4-x86_64

Cheers,