I have just reinstalled windows 7 on my PC, now normally when i have done this everyting is fine. All I do is loop the HDMI out of my graphics card through the xonar 'in/out' to my display, then load the xonars drivers. This time, same configuration 'hdmi/graphics card/xonar in- out/display' but as soon as i load the xonars drivers you can hear a click then the screen goes blank. The only way I can dsplay a picture is using the graphics card HDMI only missing the xonar out.
Any ideas? I have carried out this procedure loads of times and never encountered this before.
Yeah, it sounds like a conflict. I'd check your video settings to make sure they are set up properly, as I suspect the 1.3 only accepts certain formats...
Also, out of curiosity, lack of video aside, if you use the HDMI out, do you at least get the audio signal [which proves the connection is fine, and its a video problem] or nothing [which proves it might be something at the other end of the connection].