My Delfina Plus also crashes once in awhile but when it does it seems to lock-up at the point of the sound it is playing so you get a continual loud annoying sound until you shut down the computer. I had it happen the other day when I was in the AHI prefs program and I pushed the sample sound button. It locked up making the sample sound. After I shut down the computer and restarted it I tried the prefs program and sample sound button and it worked fine. Go Figure?