Thanks in advance for any suggestions. I have a paragraph style with a large rule set to overprint, but the text to knockout. (the idea to look like highlighted text, with the highlighted area overprinting). CMYK colour. I'm getting an unusual overprint preview and the pdf separations indicate that rule is not overprinting. Indesign CS5. Any ideas? If I create a solid box and set it to Multiply with the same colour breakdown it works, but the overprinted rule will not. Perhaps I am asking too much out of one text box?