ALC269 & VoodooHDA 0.2.2

[groppyx]

As sound is the only missing thing to get a fully working os x on my Notebook the only way to get some sound out of it is by installing voodoohda!
But the sound is totally distorted only if i move the mouse the sound gets clearer.
I searched a lot and found out that it could be somehow cpu related and added idlehalt=0 as Kernel Flags to my boot.plist.
This didnt work for me and so i wanted to ask if anyone had the same problem and found a solution?
Any help would be greatly apreciated!