Thanks for the comments – that's very helpful. I mentioned the inevitable "steps backward" with a software upgrade. With the latest Drupal CMS version, here are the two steps backward I've hit (in case any fellow webmasters are interested in the details):

1) Module for creating custom excerpts (i.e., short article "teasers" listed on main page) was not updated at same time. I know good people are working on this, and it will be solved soon.

2) The Javascript text editor I use, TinyMCE, was also not updated, and doesn't look to be under active development. Its functionality under the new Drupal is much more limited.

Re the latter: The site layout does have a fluid middle column, but it looks as if the TinyMCE window itself isn't fluid (at least not any more). It all fits if you widen the browser window enough, but that may not be possible on small-screen setups. And while there used to be a switch to turn off the Javascript editor, I see that, as you point out, the switch is now gone from TinyMCE.

So for now, I've switched from TinyMCE to a much simpler editor called widgEditor. You should see blank input boxes (which many people will understandably appreciate), with an "enable WYSIWYG" control to turn on the editing controls. (Though once they're on, I don't see a control for turning them off again... Grr...)

The controls are nicely simple, and in my testing, the widgEditor input box is fluid, adjusting its size with browser size. So this solution should work well... until your or someone's browser setup proves that wrong.

Thanks for the usability testing, and please let me know if problems continue!