It used to be possible to close multiple windows in a row by clicking each close button in succession. Now "Present Windows" will quit after closing the first window. Arguably, one of the main uses for "Present Windows" is to close multiple windows in a row (especially if you rely on hidden window decorations a lot), so this is a significant regression in my book. Thanks!
Fixed *** This bug has been marked as a duplicate of bug 415155 ***
(In reply to David Edmundson from comment #1) > Fixed > > *** This bug has been marked as a duplicate of bug 415155 *** Thanks. And oh yeah, I noticed the "unfocusable" thing too, but was already afraid that was some kind of graphics driver problem. Glad it's solved.