Hi, I have two soundcard on my PC (creative two channel, and SONY cav-u5). I had no problem with the creative soundcard and can get 2 channel output. When I tried to change my audio settings on my PC to Sony CAV-U5, and change the audio settings of the powerDVD to SPDIF there is NO audio output. My powerDVD detects only the creative audio, how can I change it? I've tried to play eagles hell freeze over DTS audio on window media player using the SONY cav-u5 connected to my receiver then I get DTS on my receiver. Seems like powerdvd don;t support the sony cav-u5, any workaround in this issue? any driver?