mbp vista volume

[utsavtalwar]

hey
just noticed the volume om my mbp in vista and it keeps on fluctuating on its own..
i play a song or play a game and the vlue just decreases on its own..

please help..
this was before and even after installing bootcamp 1.3 drivers..
thx
utsav

[utsavtalwar]

please reply guys my vista sound volume fluctuation is irritating..