I'm still having a problem with the volume up and down on my infill. I installed Vista a while ago and tested and those buttons did work then. I reverted back to xp with a ghost copy so i had the original installed. The mute button works, and when the screen is black, and I press a volume button, centrafuse reacts and opens the main window, but the volume does not change. I can hear the Infill beep when i press the buttons too.
I'm guessing it is some sort of software issue on my installation.