If you're talking about the "VIA high definition audio driver", that's irrelevant to the HDMI audio. HDMI Audio drivers come with the "VGA driver" (which is kind of a misnomer since it's a graphics driver, not limited to VGA). The Audio driver is under the ibxHDMI subdirectory once you unzip the file. I don't think you need the stuff under the HDMI directory.
Re: 2 channels... have you gone into Control Panel | Hardware and Sound | Playback and then, after single clicking on the HDMI audio device, clicked the Configure button? If you're stuck with Stereo at that point, you're probably not detecting the >2 channel capability of your receiver. This could be due to some EDID read weirdness, or possibly because you have your receiver set to audio passthrough and therefore the capabilities being advertised back to your HTPC are the ones of your TV rather than of your receiver.
Re: 2 channels... have you gone into Control Panel | Hardware and Sound | Playback and then, after single clicking on the HDMI audio device, clicked the Configure button? If you're stuck with Stereo at that point, you're probably not detecting the >2 channel capability of your receiver. This could be due to some EDID read weirdness, or possibly because you have your receiver set to audio passthrough and therefore the capabilities being advertised back to your HTPC are the ones of your TV rather than of your receiver.



















and a better mess than with an nVIDIA 730i (9400) board. Haven't tested a recent ATi solution to compare but I always found ATi did better in artificial tests than actual viewing (at least in PAL land). Just my opinion.
but babgvant's review seems to agree with my findings (or rather the other way around).




