Further to this I can write an outgoing email using the full size of the page. When checked in Print Preview it looks fine. When I send it the copy in the Sent folder also looks perfectly normal, yet when I send it to another of my email addresses it is received 30 characters wide. All other emails ae being received perfectly.
I've gone through everything in Outlook to find the cause, including changing the margins, giving a small or larger page, but nothing works. I'm totally lost on this one. Any help would be appreciated.