to see a selection of Favicons look at http://www.favicon.co.uk/gallery.php?page=1 there are four pages of them. Hover over one to find out who owns it or click to got to that company One very similar to the Forum one on page 3
Thanks to everyone. Particular thanks to paulh as clearing down the cache sorted it. On re-logging in the favicon was back to the familiar + when on plusnet sites.
