Nobody has answered this, but I wondered if you had found a solution. My FaderPort arrives later this week, and I need to have Audition as a backup (StudioOne 3 is simply not working properly).
Sadly, PreSonus is very good at the glitzy side of things, but there are lots of deep-down issues with their software, and I'm now concerned that I may have to do the same (return the FaderPort when it arrives).