I'm running Firefox version 11.0+build1-0ubuntu0.11.04.1 on an AMD64 Ubuntu Linux. Some comments were very poorly formatted on my screen today -- they were covered by the side-bar advertising:
Arjan suggested Mozilla Bug 418975 - Soft hyphen not working in tables](https://bugzilla.mozilla.org/show_bug.cgi?id=418975); there are three test cases there that look as I think they should look: one two three. (I'm not bothering to attach images, since I think they rendered alright.) There's also one test case that I can't quite tell, the
fieldset test case. On my browser, it renders like this:
Without knowing what to expect, I can only say that this might be related.