Hello. I am new here. I just bought the Cubase Studio 4 and Focusrite Saffire audio interface. I run this on a Macbook Pro. I followed the Cubase getting started instructions manual and downloaded the Cubase operations manual. I setup the busses (Saffire), the midi port, etc. My problem is that I am wanting to listen to the Halion One sounds using my Roladn D-2o keyboard and the Cubase shows when I play the keys that the midi is transferring from my Roladn to the Saffire to the Macbook but I have my headphones in one of the two Focusrite Saffire headphone jacks but hear nothing. Any ideas? Any help would be greatly appreciated.