Yeah cheers mate thats wicked. Had a bit of a fiddle and I now know exactly whats going on, I think. When you open halion it gives all its possible outputs a channel on the mixer. So then you can set the outputs on the mixer, which then means you can change the output from halion. I found that if you didn't change that outputs on the mixer then changing the outputs on halion didn't do anything. Cheers for the help man. T :lol: