In v.1.1.5, when I try to edit Midi Controller Map (or even use Default) it crashes. Mainstage v.2, also Standalone, also in Digital Performer. 2011 M BP, MacOSX 10.6.8. 16GB RAM. I put in a Tech Support Ticket, and heard from David that he'd like more information. By then I'd gone back to v. 1.1.3. I'm sorry if I should have posted it here first. Thank you.