sound & graphics conflict. plz help

Whenever im playing an mp3 or something in either windows media player or winamp & i open the visualizations, the sound starts to crackle a lot. It stops when you switch to fullscreen so i'm confused. I think its a conflict between my graphics & sound as they are both onboard. I updated the drivers for both my graphics & sound but this only made things worse. Can anyone help me plz?. Cheers.

 

hrmm....U sure its not your speakers! When you go to full screen the problems stops???

 

Yup, not my speakers. And now its still crackles a little when its fullscreen but even windowed without visualizations it crackles even more & seems to speed up and go weird now .