Explode.pl suddenly failing, HELP!!

[Martin Whinnery]

<scared looking man running in circles screaming>

Er,
   I'm running bin/check_mailscanner from a cron job every 5 minutes. As of 8pm yesterday, I've started getting messages of the form:

> Starting virus scanner...
> Global symbol "@sbirmc" requires explicit package name at (eval 700)  line 1,
> <TEXT> chunk 10.
> Can't call method "parts" on an undefined value at
> /usr/local/MailScanner/bin/explode.pl line 197.

Plain text mail gets through ok, but everything else appears to be sticking in the spool/MailScanner/incoming directory. I really don't understand.

We have an OFSTED inspection starting on Monday, I'm very scared. Got any ideas? It's worked fine for the last 3 weeks. I'd much rather not turn the mailscanner off, as it's catching tens of viruses a day.

Martin Whinnery