Maybe this isn't exactly "news", but I couldn't find a better topic in which to relate this.
Just recently, while I was attempting to change the font on my signature to a recent post, I noticed that many of the post menu features do not work. Not only do they not work (at least for me), they actually will freeze up the post* all together, requiring me to have to rewrite the entire post. I actually had to rewrite my last post 4 or 5 times (I lost count), while attempting to use such features as: text color (when selecting "more colors"), insert picture, paste text, (hyper)link, etc. (*I was only able to change to bold and italic font by using short-cut keys.) It seems that there are many other functionalities that are dysfunctional: Anchor properties, table properties, insert smiley, insert special character, etc. Basically, it appears to apply to any button that results in a pop-up box, since the pop-up box will just be blank with a header of what it was supposed to be able to do, and an 'x' in the corner to close out the window, which itself, also does not work. We are using Internet Explorer 9, so I don't see why that would be a problem.