Hi all

I have been having a rather odd sound related question recently on my PC. Basically when I first put my PC together the original soundcard was a £10 creative cheapo thing. When I was using it the sound level used to fluctuate rather violently during music (The louder the music, the more obvious). Anyway, I decided it was probably the soundcard so got a new one (well I wanted one anyway

) and was hoping the problem would sort itself out. I should probably add that when listening to music through my headphones that are in the mobos onboard sound socket the problem doesnt occur...
However.... my new (2 month old now...) soundcard which is a Xfi Xtreme Audio (the not quite Xfi model) still has the same problem. But I have managed to narrow down the cause of it.
Basically I can move speakers up to max (on the manual control on the speakers), put application volume up to max (usually itunes) and put the vista volume control down to like 10% and this stops the problem. However it occurs worse vice versa when vista volume is maxed and speaker volume is lowered. So i can only assume the vista volume control is making my volume fluctuate wildly..
Hopefully that made some sort of sense, I cant really be sure it did because it is rather higgldepigglde
So has anyone got any ideas for fixes????
Thanks.