Ron and Mel,
I use the "enlarged view" most of the time. Besides the easy-to-read size, I also find it easier because it enables me to see the all of the text in a box without having to scroll through it (which becomes necessary if there is a large amount of text entered).
There are a couple of ways to go from one enlarged text box to the next. One way is to click on each tab on the left side. As you describe, you can navigate from box to box, but inserted text is NOT saved by doing so.
A second way is to enter text in a box, then click one of the three "update" boxes at the bottom. (You can also cycle through these by repeatedly hitting the tab key). In this case "update" means "save", so what you have typed in will be saved.
A third way, which I prefer, is to put text in a box, then hit "tab-enter". This advances you to the next box AND saves what you have typed. If you stick to this approach, your typing will always be saved. It also helps minimize clicks since you don't need your mouse to navigate through (most of) the boxes.