Axiom 25/Enigma help

[d-rock]

i bought a Axiom 25 and i love it. I then downloaded Enigma from M-audio.com and i was really confused(I'm not really well associated with MIDI yet)

anyway i was messing around with it in garage band just trying to figure it out and all of the sudden only 4 of my keys would produce sound?

i think you can assign sound to certain areas and maybe i only set it to a few keys?? i don't know but i would love if someone could help me out!

thank you all

derrick