Comment 23 for bug 625670

@Mass-Yas. Does not sound like the same bug. In mine at least (and seemingly everybody else's) the theme never goes back to the default. X never freezes on mine. And on mine the theme will not apply even during an individual session. Also, on mine the behavior is very easy to reproduce. I'd recommend trying the fix in post 20 and if that fixes your problem, then it's probably a different incarnation of the same problem that we have.