There have been reported cases of ASIO4ALL interfering with dedicated drivers. Since ASIO4ALL is easy to install, I suggest uninstalling it, re-installing the Mbox drivers, and seeing if that works. If so, problem solved...if not, return to ASIO4ALL. I used an MBox 2 with SONAR for a while and it worked, but it wasn't the Mini so don't know if that's the difference.