Bug#690428:

[David Smith <sidicas2@gmail.com>]

It's a lot easier to reproduce than I previously thought...

Steps to reproduce (KWIN effects enabled by default in KDE):
1. Go into Desktop Effects and uncheck the "Fade" effect.
2. Run any GTK application (dia, synaptic, iceweasel, firefox,
libreoffice, GIMP, etc.)
3. Use left and right arrow keys or the mouse to scroll through the
menus.  Menus randomly fail to render properly.


Theme doesn't matter.  I made a mistake in my testing.
 It was suggested to me to tag this as release critical so I will try
to do that.

-David