When creating a new page, WP 3 Multisite is creating an Auto Draft of it. "Auto Draft" then appears in the sites nav menu along with the same page which is the correctly named version.
ie "Auto Draft" and "New Home Page" appear as links in the site menu. Both link to the same page - "New Home Page".
I have found a plugin which switches off the revision feature in Page edit screen.
Any pointers on how to can get rid of existing Auto Draft page - btw it doesn't show up in the Pages list backend.