Boy! Talk about a great history lesson! I need to print that out so I can refer to it when I look at CC's. Well, guys, believe it or not I ran out of questions. (For the moment, at least.) But just wait till I get my hooks into a CC. Now I want to just poke around on the site and listen in on others' conversations. Amazing what you can learn from someone else's questions. When I was in school I used to love it when we went on field trips. Usually there was some nerd that asked a lot of dumb questions and we learned a lot more from listening in on the answers. Not that questions here are dumb, you understand. Many thanks for an informative thread.