I've been trying to get my DSS2 processor to work with my 2011 macbook pro (10.6). I've tried a few freeware programs and utilities>audio midi setup, but the setup is only recognised as stereo and encoded digital output produces no sound at all. For the time being I can still use the setup as headphones and an equaliser, but I would like to get the 5.1 working properly. I should also mention, they work fine with my xbox 360 and digital tv. Can anyone help? Thanks!