Very frustrating. They have stopped including the CD with the Comprehensive edition and instead tell you to download the lessons that go with the book. Unfortunately the lessons are not at the website posted in the book. I spent 2 weeks trying to get someone, anyone at Prentice Hall to help me. I finally got the lessons (at http://wps.prenhall.com/bp_grauer_exploring2003-1, I think) but there were multiple versions and Im still not sure what all's missing. The first 10 pages are just plugs for other Prentice Hall computer books. Finally the lessons are.. OK. It lead me through the steps to create nice .PPTs, but there is no glossary, and the index is very thin. This is no comprehensive "bible" for looking up specific problems. It's much more of a "one step at a time" do in sequential order book.