I'm getting apparently buggy behavior (in 451) in that saving Sort Presets no longer works. I can save a preset and as long as I don't dismiss the Sort dialog it's in the list (and I can delete it, create it again, etc.) but as soon as I dismiss (Apply+OK or just OK) the dialog and bring it back up my custom ones are all gone. It sounds as if some changes were actually made in the last few builds, but I'll admit I haven't been paying careful attention, so perhaps it's not new.
