Just so you know: I did copy and paste your code from reply #9. What I said in reply #10 was slightly different, and I wanted to make sure we're on the same page.
Hi aladage and others,
Just wanted to let you know that I found a hack that fixes this problem. Change line 37 of
/assets/components/tinymce/jscripts/tiny_mce/themes/advanced/skins/cirkuit/content.css
from
body {height: 94% !important; padding: .5% 5px !important;}
to
body {height: 94% !important; padding: .5% 5px !important; white-space: normal !important;}
Not a good permanent solution, but works for my *one* site where this has randomly happened!
Scott