Recently we have been having this issue at work, We have a line of packaging that uses the same pantone color (375 C). When we go to create a new document and use that same pantone the color onscreen looks more saturated then its predecessor. The only think I can think of is that I've upgrade to the pantone plus system but have since uninstalled and reinstalled the old color books. Both documents are in CMYK color space and both use the same ICC profile. Any thoughts? I know it wont appear this way when printed but we make a lot of PDFs for approvals and the colors come out more saturated in the PDF as well. See sample image below. Thanks for your help!