I have been corresponding with Agoracom about the problem some of us are having seeing our text properly, on the right hand side of the editing area, when we're composing a message.
The overall impression I get is that it's not going anywhere good.
The site IT and maintenance seems to be written for their particular setup, rather than making it work across a variety of browsers, or at least the most standard ones, and a variety of setups.
It's a bit disappointing, but this is not eBay or Amazon, where things have to work. So I give up.
So for those having similar problems, it's either 1) put up with not seeing what you're typing, on the right hand side, or 2) add lots of paragraph line-returns and live with it.
Sigh.