Backup Exec 2012 persists in emailing broken HTML

Hi,

I'm having trouble getting Backup Exec 2012 to send a readable job log for the Jobs Summary report. The HTML attachment it sends is broken - it seems to include some sort of unexpected character at the start that makes Chrome, Firefox and IE all fail to parse it, as does my email client. They end up displaying it as raw text, which is of course pretty much unreadable.

Not only that, but I've gone to Backup Exec Settings and set Email job log attachments to Attach job logs as text - and I'm STILL getting them as broken HTML!

Any ideas?