When l try to run ADDICTIVE DRUMS in a midifile project I only hear the addictive drums playing but l don't hear the other instruments even though l can see the signals working on the individual faders.Could some one give me an idea as to what l am doing wrong?l am using SONAR X3 PRODUCER with 

Are all your busses UN-soloed and UN-muted?

Go to the beats page. Select GM from the midi map drop down.

What are the other instruments and how have you inserted them? What are the track iputs/outputs? If  Addictive Drums is the only synth you can hear, why do you say it's not working properly?