Hey there. I just finally solved my biggest Xebra issue to date, and that is audio crackling during FMVs / CD Audio streams. I tried changing the audio buffer values, I tried changing the simulation settings, tried deleting the INI... I literally tried everything I had found by googling and more, but nothing would fix it. Here's the thing. It's really dumb : When I tried disabling OpenGL stretch, it suddenly played the audio perfectly... So it turns out, Xebra doesn't like OpenGL when VSYNC is enabled in my Nvidia Control panel. Yup. If you have stuttering issues and don't know what else to try, maybe you'll find that forcing VSYNC to off will get rid of your issue... And maybe you won't spend two hours on this like I did!