MIME::Parser BSD tmpfile error

[Pete]

http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind0312&L=mailscanner&P=R58112&I=-1

I see the above fix from Julian regarding the FreeBSD  error
Mar 25 10:07:49 freebsd MailScanner[14824]: Notices: Warned about 4
messages
Mar 25 10:07:49 freebsd MailScanner[14824]: New Batch: Scanning 3
messages, 4136 bytes
Mar 25 10:07:50 freebsd MailScanner[14824]: Cannot parse
/var/spool/MailScanner/incoming/14824/670332764.header and ,
MIME::Parser: can't open tmpfile: Invalid argument
Mar 25 10:07:50 freebsd MailScanner[14824]: Cannot parse
/var/spool/MailScanner/incoming/14824/74478277C.header and ,
MIME::Parser: can't open tmpfile: Invalid argument
Mar 25 10:07:50 freebsd MailScanner[14824]: Cannot parse
/var/spool/MailScanner/incoming/14824/54D32219F.header and ,
MIME::Parser: can't open tmpfile: Invalid argument
Mar 25 10:07:51 freebsd MailScanner[14824]: Virus and Content Scanning:
Starting

This is a fresh FreeBSd installation with 4.29.5 - the port.

Only other thing i have installed so far is Postfiux 2.019 - i havent
attempted to upgraded perl yet, 5.6.1 (anyone got a quick tip for me here?)

Do i need to apply a patch to fix this error still?

Thanks
Pete