Just got my copy of bb2014 BUILD 380, and it looks and feels great, except: In playback, from the first measure on, the beat seems to 'lurch', not being even and smooth. It frequently seems to hesitate for a beat, like someone who is a little on the spastic side. I exported it to a MIDI file, played it on WIN media player, and its fine. I called up a resource meter to watch CPU activity, and there doesn't seem to be anything odd there. Is there a setting (buffer maybe) that I can try?