Opened a project created in previous version, did some amends and Publisher failed to save... (Screen grab of Panel that appeared is attached below.) I was also unable to do a 'save as' - the same panel appeared... As a work round, I created a new document (same size etc...) and copy/pasted all items from original document to new document. Document contained an overall bleed image and Publisher still refused to save this new version. I deleted the image and Publisher did allow me to save this... Once this was successfully completed, I could re-insert the background image and Publisher DID allow subsequent saving. I also found the margin editor would not always allow me to modify the position of the margin guides, for example, they were set at 25mm as a default, when I accessed the Margin editor, it said they were at 10mm... It took repeated attempts in order to change the values.