Nvidia ION driver update now HTPC won't show up on plasma

Ok all I finally got the damn thing working, trying all kinds of things suggested and some other things, not sure what exactly did the trick, but I can tell you there is a setting on my Onkyo saying something like HDMI Audio Out = Yes/No. If i set it to No I get nothing on my screen. However now the problem I am running into is getting proper audio out of XBMC, if I check either DTS capable, or surround sound capable (i think this is what it is) I get an error when playing movies saying audio device failed to initialize. As of right now I have to leave it set to these being unchecked I have done a driver update for the nvidia HDMI audio and still does not make a difference. Has anyone else come across this issue and have a solution? I really appreciate all the help!

The only times I've seen the "failed to initialize" message is when I forget to turn on the receiver before I start up XBMC, or when the receiver is off and I'm trying to play a DTS or AC3 content.

Stupid question: did you turn on the receiver before you turn on XBMC?

OK I finally got everything working the way it should. Not sure exactly what the cuplrit was. I ended up, updating my bios, reinstalled the drivers for the vid and audio about a dozen times, also did a fresh install of xbmc (eden 3) somehow I got it all working and with full 7.1 audio. Thanks for everyones help on this.