v8.0: some bookmark icons are blank, and when I bookmark the url again the icon remains blank.

In both my bookmarks toolbar and in my bookmarks menu some urls do not have the associated icon. deleting the existing bookmark for a url and re-marking it still does not associate an icon with it. I'm using v8.0 and Multirow Bookmarks Toolbar Plus- which seems to work in the new version.

Any help appreciated.

Thanks