Comment 3 for bug 725988

just for reference, here is the gnome-shell bug that led me here:
https://bugzilla.gnome.org/show_bug.cgi?id=670092

in the Debian BTS, there a different bug with the same root cause:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=630741
(i too see one of two emacs icon blurred)