Just reinstalled JABB after a long time.  First time using with X2.  My issue is that everything seems to be correctly configured but when I play notes on my external keyboard, I hear no sounds.  Yet when I press notes on the keyboard on the ARIA interface, I hear sounds.  Already tried this from their site with no luck:

We are aware of a problem in which Sonar resets all controllers to zero by default. To fix this, follow these steps:
Select the Options | Project menu.  Click the Midi Out tab on the dialog box. Uncheck Zero Controllers When Play Stops. This should stop the controllers from resetting. Note: In SONAR X1 Producer the commands are in a different place: Edit > Preferences > Project > MIDI > Zero Controllers When Play Stops. Edit > Preferences > Audio > Playback & Record > Play Effect Trails After Stopping.


Any advice?

I have encountered the same bug. My fix is the same as the Uncheck Zero Controllers but I also have to delete and re-load the synth for it to start giving me access to it. It works everytime afterwards.

Many of the Garritan libraries use the Mod wheel as the volume control. The default volume is zero (stupid, stupid, stupid). Anyway, you'll need to record a mod wheel up (or down) to set the volume before your recorded midi can be heard. There is no way to change the controller that the library's volume responds to.

Regards,
Dan