On LetterEdit.aspx it is possible to click "Save Current as Template Named:" with no text in the control. This results in a template with no name, that cannot then be amended or deleted because on LetterTemplates.aspx the hyperlink is on the template name.
Adding validation on this control would be useful, plus, where an existing title is empty, create a hyperlink on LetterTemplates.aspx with text something like "[No title] view/edit".
Related: some of my users have managed to create editions without titles/subject - I'm not sure how, as this field does have validation on LetterEdit.aspx - but we then get a similar problem: these cannot be edited or deleted on LetterDrafts.aspx as the link is on the text. The same solution as above would be helpful.