Hi. I also have one but never had that problem. 3.9BB2 too here but with CyberstormMK2 060.
I think you probably have a software problem somewhere. Are you sure you installed the AHI version that corresponds to your CPU ? BTW ver.6 is way too heavy you could try 4.18. Probably extreme but to avoid the mess with installing/uninstalling AHI make a clean AmigaOS3.1 install on a spare partition and then boot from it.
Also, maybe the concierto library you have is corrupt, it's probably rare but it's happened to me while downloading from Aminet too.
Out of curiosity, how's the sound level on your system ? I had to start the mixer before running other apps to raise the levels...
