The general Microbrute forum already has an Octave Down topic that I hijacked. My Octave Up button only seems to work about 50% of the time, which I failed to notice because I generally go down an octave or two. At any rate, at this point I'm outside of zZound's exchange period, and have submitted a ticket for tech support (ticket # 182261) close to a week ago with no word. Any word from Arturia would be awesome, as well as input from more people having the same issue.