I was asked the question recently - why do you need Adobe Reader when the CD seems to run just using Internet Explorer. I thought this was a very valid question, so I'm posting the answer here for everyone's benefit...
The CDs actually work in two parts - when you are browsing through the designs you are looking at them in your default internet browser which for most people is Internet Explorer. When you actually select a layout to print, you are opening up a PDF file. You need Adobe Acrobat Reader to view and print a PDF file, but this type of file has become so popular and widely used, that Adobe provide something called a "plug in" for most common internet browsers, to keep the whole thing seamless. So although it looks like the whole thing is done in Internet Explorer, when you are looking at one of the layouts, you are actually using Adobe Reader, but in its "plugged in" version, inside the browser.
So you do need Adobe Reader, but you shouldn't need to ever open it first to use the CD. It should all happen automatically inside your browser. The toolbar that you see just above the layout is not an Explorer toolbar, it's an Adobe one. That's why you can make the snapshot tool visible - you're tapping into Adobe's tools at that point. Also when you print, it's Adobe that is handling the print menu, not Internet Explorer. That was the whole reason for doing it this way, Internet Explorer is rubbish at printing and can't be relied on to keep everything on the page! PDF files were invented for printable documents.
So, for those of you who like to know how these things work, I hope that's helped explain it a bit better.
