Hmm, I have been looking at it for less than a minute and I found at least 1 bug...no thanks.
1) on a netbook the old version which went full width, this was actually a very usefull feature. Most of the stuff on the side you do not need all the time so the extra space (instead of using 50% of a 9inch screen) is really nice.
2) In chrome switching on the "improved" DFW fades away the side bars...the end...and when you hover in that region they reappear to stay, though the button stays toggled=bug.

As such, just go back to the previous version, and improve it by making the textbox framed wrt the screen (i.e. also in the vertical direction, such that you can make use of the features such as font options and such even for longer texts without the need of always scrolling back to the top of the page...an IFRAME type of setup, for those familiar with HTML;) ).