hi Kambiz,
From my experience with Vista the audiomixer doesn't work very well.
The experiences below are made with the demo \ Mixer Control compiled with D7:
On normal desktop PC's with Vista:
- no systems could not control the mic level.
- control of playback volume worked ok.
On 10 laptop PCs with Vista:
- no system could control the mic level
- 8 out of 10 could not control the playback volume
I read somewhere that there are problems with the mic settings,
depending on what updates you have performed on Vista,
but I can't remember the details.
cheers,
Stef