Folks just seeing if anybody else is having issues with unstable mpeg audio tracks.

Seems to be an issue with my box running VIX image 3.0.702, I notice this when watching any of the Primafilm channels on 13'E and I have to listen to the Mpeg audio to get an English soundtrack, the AC3 Italian soundtrack is perfect.

Sound seems to fluctuate and vibrate, it never goes cuts out but is very annoying when watching movies.

Could this be my box somehow or is there a setting somewhere to improve / clean up the audio?

Thanks for any replies.