Thanks Quentin, that's sorted the issue. I'd already changed the MIDI Out to full but didn't think about the instruments. 8-|

I am running EarMaster 5 on Mac OS X Lion and since upgrading to Lion (10.7) the sound level coming from EarMaster has dropped to a ridiculously low level. ;-( I can still use the program through headphones and turning the volume level of my headphone jack up but I thought it would be nice to inform...