Hi there. I have a yamaha mm6 keyboard which I have connected to my mac using midi, in logic express it shows that it is detecting the notes, yet nothing plays through the laptop speakers! I am selecting external midi when I make a new track btw. If I record something it even shows the notes as I play, but no sound. I want to use the instruments on the keyboard but don't know how to do this. Also I have a boss dr 670 drum machine and I can't get that to work at all in logic, the keyboard worked if I used a software instrument in logic. I want to also use the drums from the machine and things like it's quantizing, but I can't get logic to pick it up at all. If anyone could help, it would be greatly appreciated.