I recently set up smtp-vilter 1.1.4, SpamAssassin, and ClamAv 0.75 on Fedora Core 2, I am having problems with the three programs working together. smtp-vilter seems to be working and I can send/receive mail, but clamd and spamd don't seem to be configured right, or they don't have the proper permissions. Here is a section of my mail log file with the errors:

Aug 19 15:33:53 pma smtp-vilter[20173]: clamd: unable to connect socket, Connection refused
Aug 19 15:33:53 pma smtp-vilter[20173]: error during virus scan of file /tmp/vilter.XXXXlVgJIQ
Aug 19 15:33:53 pma smtp-vilter[20173]: marking message (but deliver anyway)
Aug 19 15:33:53 pma sendmail[20176]: i7JKXk0h020176: Milter add: header: X-Virus-Scan: smtp-vilter
Aug 19 15:33:53 pma sendmail[20176]: i7JKXk0h020176: Milter add: header: X-SMTP-Vilter-Version: 1.1.4
Aug 19 15:33:53 pma sendmail[20176]: i7JKXk0h020176: Milter add: header: X-SMTP-Vilter-Backend: vilter-clamd
Aug 19 15:33:53 pma sendmail[20176]: i7JKXk0h020176: Milter add: header: X-SMTP-Vilter-Status: unchecked
Aug 19 15:33:53 pma spamd[20114]: connection from localhost.localdomain [127.0.0.1] at port 36154
Aug 19 15:33:53 pma spamd[20178]: Still running as root: user not specified with -u, not found, or set to root. Fall back to nobody.
Aug 19 15:33:53 pma spamd[20178]: checking message <6.1.2.0.2.20040819154256.035a0e20@smtp.rapco-rfs.com> for (unknown):99.
Aug 19 15:33:53 pma spamd[20178]: bad protocol: header error: (Content-Length mismatch: Expected 49346064674759899 bytes, got 42203 bytes)
Aug 19 15:33:53 pma smtp-vilter[20173]: spamd: no response to STREAM cmd, Success
Aug 19 15:33:53 pma smtp-vilter[20173]: error during spam scan of file /tmp/vilter.XXXXlVgJIQ
Aug 19 15:33:53 pma smtp-vilter[20173]: marking message (but deliver anyway)
Aug 19 15:33:53 pma sendmail[20176]: i7JKXk0h020176: Milter add: header: X-Spam-Checker: smtp-vilter
Aug 19 15:33:53 pma sendmail[20176]: i7JKXk0h020176: Milter add: header: X-SMTP-Vilter-Version: 1.1.4
Aug 19 15:33:53 pma sendmail[20176]: i7JKXk0h020176: Milter add: header: X-SMTP-Vilter-Backend: vilter-spamd
Aug 19 15:33:53 pma sendmail[20176]: i7JKXk0h020176: Milter add: header: X-Spam-Score: 0.0
Aug 19 15:33:53 pma sendmail[20176]: i7JKXk0h020176: Milter add: header: X-Spam-Status: unchecked

Could there be a problem with user or group permissions on any of the directories used by smtp-vilter or clamd? What user should spamassassin be running as, and what permissions are needed on the /tmp folder?

Thanks in advance for any help with this.