We use a third party editor to allow editing of HTML emails. For a while, we've used FCKEditor, but development on it has stopped to be replaced with CKEditor. Because of compatibility problems reported between FCKEditor and the soon to be released IE9, we're going to upgrade to CKEditor.

I've now done that on our beta server, so if anyone has any problems, please let me know at robm@fastmail.fm so we can fix them before we release the change to production.