Hi Stian, > Thanks :) But I still have the same problems with my Cinergy > 600. Sometimes when I switch channels I just get noise for > sound (like an untuned radio-channel). If I switch back and > forth sometimes, the sound comes. With Bart Veldhuizen's > patch, this never happened. I always got sound, but it > disappeared after about five seconds, everytime. So.. it must > have done something right (and obviously something wrong). I > know others are experiencing this as well.. Did you experiment with the values that I write into those registers as I suggested? I also experienced the bevahiour that you describe on my Cinergy 400, but it disappeared when I chose a value of 1. Maybe another value gives you good results.. Bart