The instructions doesn't tell you to load the modules, so make sure you do (but first make sure your kernel supports modules). Load soundcore module BEFORE the au8830 module. Good luck, vortex2 sucks on linux. When I tried it, it would lock my system up after playing audio for a couple seconds. Talking to others who have got it 'working correct', the audio sounds like crap. Simpler to just buy a cheapo $10 Esoniq card, or save up for a SBLive.