PulseAudio volume level resets to 100 %

Hi,

When I start playing audio or video, the Pulseaudio master volume resets to 100 %. The application volume for XBMC resets to 26 %. Is there a way to make it not touch the master volume? I think it may be turning the application volume up to 100 % first then down to 26. I would rather disable volume control completely, as I have hotkeys for that, and for switchign between speakers and headphones.

I'm using Scientific Linux 6.4,
XBMC Media Center 11.0 Git:Unknown
xbmc 11.0-7.el6 (RPMFusion)
Pulseaudio 0.9.21

Thanks, Marius