Error - Perl execution failed

Hi
I have just completed an install of virtualmin all ok but i get the following error when looking at Cron Daemon emails in roots email all other emails seem to be ok. Any idea what may fix this?

Error - Perl execution failed
Unknown encoding ‘ANSI’ at /usr/share/webmin/mailboxes/boxes-lib.pl line 1621

Thanks
Col

Operating system Ubuntu Linux 12.04.4
Webmin version 1.680
Virtualmin version 4.07 Pro

I’m having the same issue. Seems to have started with the latest version of Virtualmin. Of course you can just install Roundcube and access webmail that way, but for simplicity, it was nice to be able to login as a user from Virtualmin when necessary to check emails.

Ubuntu 12.04.2 and Virtualmin 4.07