On 07/30/2014 04:39 PM, martin rudalics wrote:

> I suppose it's related to changes in GTK3.  I often see this:
>
> http://lists.gnu.org/archive/html/emacs-devel/2014-01/msg02228.html
>
> And there's also bug#17982.

 From GTK3's gtkeventbox.c:

* You should generally make your event box invisible if
* you just want to trap events. Creating a visible window
* may cause artifacts that are visible to the user, especially
* if the user is using a theme with gradients or pixmaps.

This helps in my case.  OK to install?

Dmitry