I'm a new Logic user. Everything is rolling along fine, aside from the fact that I can't hear the midi voices. I can hear them, for example, in the loop browser, but once I place them in a track in the arrange window, I can't. The sound activity shows in the channel strip and the built-in audio driver is activated in the preferences, still, no sound. I can however here like the "EXSP 24", the "ES E" "ES P" "ES M" ES 1", but all these are basic sounding synths. I can't seem to get "Mapped Drums" to sound to save my life. It's really frustrating and disheartening me, as our drummer recently left and I'm needing to build drum tracks before we get into recording our actual instruments. Can anyone help me? Please! Cheers, Sean