I just put in a SoundBlaster Audigy 2 ZS sound card today. Unfortunately, when starting GPO Studio it crashes. First, it gives me the error message "Portaudio error(-9997): Invalid sample rate, followed by another error message "Unable to initialise audio driver", followed by a system message "Access violation."
The Audigy 2 ZS is ASIO 2.0 compliant. I ran the Setup routine in Garritan Personal Orchestra and tried every single combination of drivers/sampling rates-including ASIO4All v2-but GPO Studio keeps crashing with the same error messages.