Yesterday's (or the day before? not sure :X) CVS for all of E17, as you have noticed is responsible for my pretty screenshot. But I guess all that comes at a cost, i.e. pre-alpha code gives you pre-alpha performance at times, lol.
I notice that if i open a menu and mouseover stuff, E17 is prone to crashing and killing X. Not that it's a real hassle, since I can just type startx again and E17 is back up in <2seconds. It has only caused irritation when I'm compiling things. Need to start doing that outside of X.
Anyway, recompiling today's CVS now, hopefully menu-browsing won't kill it. :)