Okay, I'm trying to be a little more fastidious about finding what's wrong. My HDSP/MF soundcard freezes with several applications, including play, mpg321, and when I play a soundfile in audacity. It always happens at the end of the soundfile, or if I command-C or push the stop button (in audacity) while the soundfile is playing. It says there's a segmentation fault, and then I can't get my card to respond to any app at all (they all say the device is busy or nonexistent). ps aux doesn't show anything at all. When I try /sbin/service alsasound restart, I get this: /sbin/service alsasound restart Shutting down sound driversnd-pcm-oss: Device or resource busy snd-mixer-oss: Device or resource busy snd-hdsp: Device or resource busy snd-pcm: Device or resource busy snd-timer: Device or resource busy snd-rawmidi: Device or resource busy snd-seq-device: Device or resource busy snd-hwdep: Device or resource busy snd: Device or resource busy [ OK ] ALSA driver already running Sound driver snd-hdsp is already loaded So that doesn't do anything at all. I have none of these problems with my other soundcard (an onboard nvidia chip). Really the only way I've figured how to fix it is to reboot. Is there a way to debug these things and find out how to fix the segmentation fault? Does anyone know what about the HDSP/MF (or its driver) would be helping to cause it? Is there a way to force ALSA to restart? Thanks, M