If I go to window decoration options, I'm presented with a black screen instead of the actual window I'd expect to see. Also, my entire machine is going crazy when I open that window. All 8 cores go up to 100% and I can't even control the scrollbar. Video: http://youtu.be/9G3v2YY8NLk Reproducible: Always
*** This bug has been marked as a duplicate of bug 341971 ***