Now that i (it seems) have solved my problem of sound blink in "standard DVD" formats, i want to go the next step : HD / master audio.
My first problem to solve is the following : i have a ATI 5750 / Win 7 but when i open the sound properties of my "ATI HDMI Output", in the "supported formats" tab i have only sample rates of 32Khz, 44Khz, 48Khz, no 96Khz, no 192Khz. In the section "Encoded formats" there is DTS, DTS-HD, Dolby TrueHD, DD.
Something weird : 2 times i have seen the 96Khz and 192Khz but most of the time they are not in the this tab.
Maybe a problem with EDID.. : i have tried the fix tulli proposed on the "monitor" that corresponds to my av receiver but windows say i already have the best driver..